Question

A person pulls a block 3 m along a horizontal surface by a constant force F=20 N. Determine the work done by force F acting on the block.

Answer 1

Take into account that the work done is given by the following formula:

$W=F\cdot d$

where,

F: applied force = 20N

d: distance = 3m

Replace the previous values into the formula for W:

$W=(20N)(3m)=60J$

Hence, the work done by the person is 60J