Question

check answers please? thanks!

I am supposed to fill in the blanks without a word bank.

1. I you push a crate with 40 N of force at an angle of 30 degrees and your friend pushes with a force of 40 N horizontally, the amount of work you are doing is _____ the amount of work your friend is doing on the crate

my answer: equal to

2. Kinetic friction does ____ work on moving objects

my answer: negative

3. as you carry books across the room, the work done by gravity on the books is ____

my answer: 9.8 N/kg

Answer 1

1. smaller than
2. right F(-d)
3.is zero as the potential energy is the same horizontally
and the kinetic energy isn't due to gravity