A 5.00-kg crate is sitting on the ground at rest. An electric motor with an efficiency of 0.20 (20%) is used to raise a crate up by a height of 2.0 meters so that it has an upward velocity of 4.0 m/s as it reaches that height. Calculate the electrical energy consumed by the motor during this process.

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A 5.00-kg crate is sitting on the ground
at rest. An electric motor with an
efficiency of 0.20 (20%) is used to raise a
crate up by a height of 2.0 meters so that
it has an upward velocity of 4.0 m/s as it
reaches that height. Calculate the
electrical energy consumed by the motor
during this process.
Transcribed Image Text:A 5.00-kg crate is sitting on the ground at rest. An electric motor with an efficiency of 0.20 (20%) is used to raise a crate up by a height of 2.0 meters so that it has an upward velocity of 4.0 m/s as it reaches that height. Calculate the electrical energy consumed by the motor during this process.
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