Question

how much work is performed when you push a couch of mass 44kg a distance of 2.5 m using a force of 135 N?

Answer 1

What is the definition of work?

Answer 2

Hint:
\[W = F d \cos \theta\]

Answer 3

I think theyre looking for work in joules

Answer 4

Yes, the units of work is in Joules, I gave you the formula, above.

Answer 5

If theta=0
W=?

Answer 6

Cos0=?

Answer 7

If it doesn't mention that the box is pushed up a hill or down a hill etc, that means it's completely parallel to the floor, meaning the angle is 0. (cos(0) = 1)

Answer 8

wait so what would the answer be..?

Answer 9

Force F=135N
Displacement s=2.5m

Answer 10

Work w=135*2.5Joule