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imatreyu
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Homework Statement
A worker pushes a crate weighing 93 N up an inclined plane. The worker pushes the crate horizontally, parallel to the ground.
a. The worker exerts a force of 85 N, how much work does he do? (A: 340 J)
b. How much work is done by gravity? (A: -280 J)
c. The coefficient of friction is 0.20. How much work is done by friction?
Homework Equations
W=Fd
The Attempt at a Solution
W=Fd
W= (mu*Fnormal)d
I'm completely stuck, as I don't know how to find the normal force!
Thank you in advance!