What is the net work done on the 20kg block while it moves the 4 meters?

A. 240J

B. - 200J

C. 120J

D. 0J

The answer to your question is 784.8 J. None of your answer, did you forget some information?

Explanation:

Data

mass = 20 kg

distance = 4 m

work = ?

Formula

Work = force x distance

Force = mass x gravity

Process

1. - Calculate the weight of the block

Weight = 20 x 9.81

Weight = 196.2 N

2. - Calculate the work done

Work = 196.2 x 4

Work = 784.8 J