Question

A boy exerts an average of 65 N when displaces the the box to 1.2m .How much does work he do

Answer 1

Answer:

given: f = 65 N, s = 1.2 m

to find work done

w = f×s

w = 75×1.2

w = 90 N m

Answer 2

Answer:

Work = F × S = 65 × 12/10 = 78J