Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN: 9781133939146
Author: Katz, Debora M.
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 9, Problem 35PQ
To determine
The speed and the acceleration of the sled. And Sketch the scenario.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Worksheets
4. Examine the diagram of an air powered car. At what point will the car stop moving?
A box is projected upward onto a ramp that has a 15 degree incline. I know knows that it starts with an initial velocity of 8 m / s. The coefficient of kinetic friction between the box and the ramp is 0.12. Determine the following:
a. The distance the box will travel on the ramp.
b. The speed of the box when it returns to its original position.
Wrecking balls are used to demolish old buildings. A 720 kg steel ball is suspended from a
10-m-long cable on a crane. A hook on the crane slowly pulls the ball back, then releases
it. The ball's speed at the lowest point in its arc, just before striking the building, is
4.5 m/s
Part A
At the lowest point in the ball's arc,
O the tension in the cable is less than mg because the ball is moving down.
O the tension in the cable is equal to mg because tension and gravity are the only forces and they balance.
O the tension in the cable is greater than mg because there has to be a net upward force.
Submit
Part B
What is the tension in the cable when the ball is at its lowest point?
Express your answer with the appropriate units.
► View Available Hint(s)
T =
Request Answer
li μÀ
Submit
Value
Units
?
Chapter 9 Solutions
Physics for Scientists and Engineers: Foundations and Connections
Ch. 9.4 - In the three cases shown in Figure 9.11, a force...Ch. 9.6 - Prob. 9.2CECh. 9.6 - Prob. 9.3CECh. 9.7 - Prob. 9.4CECh. 9.7 - Prob. 9.5CECh. 9.9 - Prob. 9.6CECh. 9 - Pick an isolated system for the following...Ch. 9 - Prob. 2PQCh. 9 - Prob. 3PQCh. 9 - Prob. 4PQ
Ch. 9 - Prob. 5PQCh. 9 - Prob. 6PQCh. 9 - Prob. 7PQCh. 9 - A 537-kg trailer is hitched to a truck. Find the...Ch. 9 - Prob. 9PQCh. 9 - A helicopter rescues a trapped person of mass m =...Ch. 9 - Prob. 11PQCh. 9 - An object is subject to a force F=(512i134j) N...Ch. 9 - Prob. 13PQCh. 9 - Prob. 14PQCh. 9 - Prob. 15PQCh. 9 - Prob. 16PQCh. 9 - Prob. 17PQCh. 9 - Prob. 18PQCh. 9 - Prob. 19PQCh. 9 - Prob. 20PQCh. 9 - Prob. 21PQCh. 9 - Prob. 22PQCh. 9 - A constant force of magnitude 4.75 N is exerted on...Ch. 9 - In three cases, a force acts on a particle, and...Ch. 9 - An object of mass m = 5.8 kg moves under the...Ch. 9 - A nonconstant force is exerted on a particle as it...Ch. 9 - Prob. 27PQCh. 9 - Prob. 28PQCh. 9 - Prob. 29PQCh. 9 - A particle moves in the xy plane (Fig. P9.30) from...Ch. 9 - A small object is attached to two springs of the...Ch. 9 - Prob. 32PQCh. 9 - Prob. 33PQCh. 9 - Prob. 34PQCh. 9 - Prob. 35PQCh. 9 - Prob. 36PQCh. 9 - Prob. 37PQCh. 9 - Prob. 38PQCh. 9 - A shopper weighs 3.00 kg of apples on a...Ch. 9 - Prob. 40PQCh. 9 - Prob. 41PQCh. 9 - Prob. 42PQCh. 9 - Prob. 43PQCh. 9 - Prob. 44PQCh. 9 - Prob. 45PQCh. 9 - Prob. 46PQCh. 9 - Prob. 47PQCh. 9 - Prob. 48PQCh. 9 - Prob. 49PQCh. 9 - A small 0.65-kg box is launched from rest by a...Ch. 9 - A small 0.65-kg box is launched from rest by a...Ch. 9 - A horizontal spring with force constant k = 625...Ch. 9 - A box of mass m = 2.00 kg is dropped from rest...Ch. 9 - Prob. 54PQCh. 9 - Return to Example 9.9 and use the result to find...Ch. 9 - Prob. 56PQCh. 9 - Crall and Whipple design a loop-the-loop track for...Ch. 9 - Prob. 58PQCh. 9 - Calculate the force required to pull a stuffed toy...Ch. 9 - Prob. 60PQCh. 9 - Prob. 61PQCh. 9 - Prob. 62PQCh. 9 - An elevator motor moves a car with six people...Ch. 9 - Prob. 64PQCh. 9 - Figure P9.65A shows a crate attached to a rope...Ch. 9 - Prob. 66PQCh. 9 - Prob. 67PQCh. 9 - Prob. 68PQCh. 9 - Prob. 69PQCh. 9 - Prob. 70PQCh. 9 - Prob. 71PQCh. 9 - Estimate the power required for a boxer to jump...Ch. 9 - Prob. 73PQCh. 9 - Prob. 74PQCh. 9 - Prob. 75PQCh. 9 - Prob. 76PQCh. 9 - Prob. 77PQCh. 9 - Prob. 78PQCh. 9 - Prob. 79PQCh. 9 - A block of mass m = 0.250 kg is pressed against a...Ch. 9 - On a movie set, an alien spacecraft is to be...Ch. 9 - Prob. 82PQCh. 9 - A spring-loaded toy gun is aimed vertically and...Ch. 9 - Prob. 84PQCh. 9 - The motion of a box of mass m = 2.00 kg along the...Ch. 9 - Prob. 86PQCh. 9 - Prob. 87PQCh. 9 - Prob. 88PQ
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A student lets a toy car roll four times down a ramp that is 1 m long. Each time the student covers the surface of the ramp with a different material. The student measures the time it takes the car to roll down the ramp and records the results in the table below. Time to complete Material Ramp (s) 4 8 Y 5 Which of these would be the best conclusion based on the data in the table? O Different surfaces affect how fast a toy car accelerates. O Different toy cars travel at different speeds. O Gravity has little effect on the speed of toy cars on different surfaces. O Air resistance is the greatest factor in limiting the acceleration of different toy cars.arrow_forwardPregnancy dramatically affects the energetics of swimming for female dolphins. Dolphins have an approximately circular cross section and are very streamlined. A typical dolphin has a girth—the circumference at the widest part of the body—of 1.4 m and a drag coefficient of 0.090. Advanced pregnancy increases the girth to 1.7 m and, with a less streamlined shape, the drag coefficient to 0.22. Dolphins typically cruise at a speed of 3.4 m/s a.What will be the cruising speed of a pregnant dolphin if she swims with the same power output as before becoming pregnant?arrow_forwardA cube of mass m = 61 kg slides along a horizontal surface. The coefficient of friction between the cube and the surface is μk = 0.41. The cube has an initial speed of vo = 18 m/s in the positive x-direction as shown. a. Write an expression for the x-component of the frictional force the cube experiences, Ff, in terms of the given variables and variables available in the palette. b. What is the magnitude of the frictional force in N? c. How far will the cube travel, in meters, before coming to rest?arrow_forward
- A sled starts from rest at the top of the frictionless, hemispherical, snow-covered hill shown in the figure. Find an expression for the sled's speed when it is at angle ø. Use Newton's laws to find the maximum speed the sled can have at angle ø without leaving the surface. At what angle ømax does the sled "fly off" the hill? Rarrow_forwardA small child of mass m=26 kg is swinging on a swing. The length from the top of the swing set to the seat is L=4.1 m. The boy is attempting to swing all the way around in a full circle. If the velocity of the bottom is the same as the velocity at the top (6.339 m/s), what is the boy's apparent weight, in newtons, at the very bottom of the path? * answer was not 1528.8 m/s, 1019.21 m/s, 2038 m/s, 3057.6 m/s.arrow_forwardThe figure below shows a motorcycle leaving the end of a ramp with a speed of 38.3 m/s and following the curved path shown. At the peak of the path, a maximum height h above the top of the ramp, the motorcycle's speed is 35.8 m/s. What is the maximum height h? Ignore friction and air resistance. (Enter your answer in m.) marrow_forward
- A mechanic is dragging an 18-kg tire across the floor at a constant velocity, while pulling with a force of 120 N at an angle of 35 degrees above the horizontal. Let g = 10m/s/s Calculate the magnitude of the normal force acting on the tire._______ N why is answer 111.17, please solve step by steparrow_forwardFans at the Tour de France can be exceedingly annoying, often impeding the cyclists and sometimes causing wrecks. In1994 Laurent Jalabert crashed into a gendarme (policeman) and was seriously hurt.Sometimes riders can stop to avoid a collision, sometimes not. It depends on friction and reaction time. The 95-kg Jalabert was speeding at 40 mph along the level street on a wet day. The coefficient of kinetic friction between his wheels and the road was 0.13. He looked up to see the gendarme about 44 m (about half of a football field) ahead of him. If he has typical human reaction time (0.15 s), how close will he be to the gendarme when he begins to apply the brakes? Round the final answer to two decimal places. As Jalabert skids, what is the magnitude of his acceleration? Round the final answer to two decimal places. How fast was Jalabert going when he hit the gendarme? Round the final answer to one decimal place.arrow_forwardA desperate hiker has to think fast to help his friend who has fallen below him. Quickly, he ties a rope to a rock of mass ma and makes his way over the ledge (see the figure). If the coefficient of maximum static friction between the rock and the ground is µ, and the mass of the hiker is mâ, what is the maximum mass of the friend, mc, that the rock can hold so the hikers can then make their way up over the ledge? Assume the rope is parallel to the ground and the point where the rope passes over the ledge is frictionless. mc = Juarrow_forward
- A water slide is connected so that a swimmer, starting from rest at the top of the slide, leaves the end of the slide travelling horizontally. one person hits the water 6m from the end of the slide in a time 0.4 seconds after leaving the slide. ignoring friction and air resistance, find the height H. b) how does the answer change if the swimmer leves the end at an angle of 10 degrees above the horizontal?arrow_forwardOn a beautiful spring day Rosie and Frankie decide to go skateboarding at the local skate park. Frankie has this really cool trick that she wants to try out on one of the half-pipe at the park. She tells Rosie to go stand on her skateboard in the center at the bottom of the half-pipe. Frankie then tells Rosie she is going to drop down from rest at the top of the half-pipe which stands at a height of 4.5 m. Frankie tells Rosie to grab onto her arms when she gets to the bottom so they can create a perfectly inelastic collision and move together after the collision. Unfortunately, when Frankie attempts this trick another skater named Mike drops down from rest on the other side (which is at the same height of 4.5 m) behind Rosie which results in the screaming Rosie-Frankie combination colliding elastically with Mike. If Rosie has a mass of 50.0 kg, Frankie has a mass of 70.0 kg, and Mike has a mass of 100.0 kg what is the final velocity of all three of the skaters after the elastic…arrow_forward39. a. With what initial speed must you throw a ball vertically for it to reach a height of 20 ft? The ball weighs 1 lb. How does your answer change if the ball weighs 2 lb? b. Suppose you want to throw a steel bar vertically to a height of 20 ft. The bar weighs 2 lb. How much initial speed must the bar have to reach this height? Discuss how the length of the bar affects your answer.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
University Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSON
Introduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Lecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON
Kinetic Energy and Potential Energy; Author: Professor Dave explains;https://www.youtube.com/watch?v=g7u6pIfUVy4;License: Standard YouTube License, CC-BY