a 10 kg block is attached to a light chord that is wrapped around the pulley of an electric motor. at what rate is the motor doing work when it is pulling the block upward w an instantaneous speed of 3 m/s and an upward acc of 2 m/s^2?

### Leave a Comment

You must be logged in to post a comment.

Answer:The rate of work is 360 WExplanation:Given:

Speed of block

Upward acceleration of block

Mass of block kg

First Find the force act on block due to gravity

Where

N

For finding at what rate motor doing work when it is pulling the block upward,

W

Therefore, the rate of work is 360 W