Question

Zak, helping his mother rearrange the furni- ture in their living room, moves a 67.2 kg sofa 6.5 m with a constant force of 36 N.

What is the work done by Zak on the sofa? Neglect friction.

Answer in units of J.

Answer 1

234 J

Step-by-step explanation:

Assuming that the force applied by Zak is in the same direction of the displacement of the sofa, the work done by Zak is given by

`W=Fd`

where

F = 36 N is the force applied by Zak

d = 6.5 m is the displacement of the sofa

Substituting these numbers into the equation, we find the work done by Zak:

`W=(36 N)(6.5 m)=234 J`