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A 740 gram grinding wheel 26.5 cm in diameter is in the shape of a uniform solid disk. (We can ignore the small hole at the center.) When it is in use, it turns at a constant 250 rpm about an axle perpendicular to its face through its center. When the power switch is turned off, you observe that the wheel stops in 44.0 s with constant angular acceleration due to friction at the axle. Part A What torque does friction exert while this wheel is slowing down? ΑΣΦ T = -0.00386 Submit Previous Answers Request Answer × Incorrect; Try Again Check your signs. ? N⚫m, in the direction opposite to the motion

A 740 gram grinding wheel 26.5 cm in diameter is in the shape of a uniform solid disk. (We can ignore the small hole at the center.) When it is in use, it turns at a constant 250 rpm about an axle perpendicular to its face through its center. When the power switch is turned off, you observe that the wheel stops in 44.0 s with constant angular acceleration due to friction at the axle. Part A What torque does friction exert while this wheel is slowing down? ΑΣΦ T = -0.00386 Submit Previous Answers Request Answer × Incorrect; Try Again Check your signs. ? N⚫m, in the direction opposite to the motion

Glencoe Physics: Principles and Problems, Student Edition
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter9: Momentum And Its Conservation
Section9.1: Impulse And Momentum
Problem 9PP
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A 740 gram grinding wheel 26.5 cm in diameter is in the shape of a uniform solid disk. (We can ignore the small hole at the center.) When it is in use, it turns at a constant 250 rpm about an axle perpendicular to its face through its center. When the power switch is turned off, you observe that the wheel stops in 44.0 s with constant angular acceleration due to friction at the axle. Part A What torque does friction exert while this wheel is slowing down? ΑΣΦ T = -0.00386 Submit Previous Answers Request Answer × Incorrect; Try Again Check your signs. ? N⚫m, in the direction opposite to the motion
Transcribed Image Text:A 740 gram grinding wheel 26.5 cm in diameter is in the shape of a uniform solid disk. (We can ignore the small hole at the center.) When it is in use, it turns at a constant 250 rpm about an axle perpendicular to its face through its center. When the power switch is turned off, you observe that the wheel stops in 44.0 s with constant angular acceleration due to friction at the axle. Part A What torque does friction exert while this wheel is slowing down? ΑΣΦ T = -0.00386 Submit Previous Answers Request Answer × Incorrect; Try Again Check your signs. ? N⚫m, in the direction opposite to the motion
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