A boy on a bicycle drags a wagon full of newspapers 1,440 m using a force of 40.0 N. How much work has the boy done?

Work done by the boy = 57600 J

Explanation:

Given:

s = 1440 m

F = 40.0 N

To Find:

W = ?

Solution:

W = F x s

W = 40.0 N x 1440 m

W = 40 x 1440

W = 57600 J

Therefore,

Work done by the boy = 57600 J

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54 degrees incident angle = reflected angle

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