# physics

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a crate is pushed to the top of a frictionless inclined plane 15 m long with a force of 25 N.

If the crate weighs 125 N, how high is the inclined plane?

0.5 m
1 m
3 m
or
5 m

• physics -

mgh=25*15
h= 25*15/125
h= 3m

• physics -

W=F(cosx)d=mgh(potential energy)
25(cos0)(15)=375
mgh=(12.77)(9.8)h
375=125h
375/125=h
h=3

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