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teggenspiller
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Homework Statement
A n 80-N crate is pushed a distance of 5.0 m upward along a smooth incline that makes an angle of 30 o with the horizontal. The force pushing the crate is parallel to the slope. If the speed of the crate increases at a rate of 1.5 m/s2, find the work done by the force:
A. 200 J
B. 1 J
C. 140 J
D. 200 J
E. 260 J
Homework Equations
The Attempt at a Solution
fnet=ma
fnet= (80/9.8)*(1.5)
12.24
w=12.24*5meters
w=61J
not an option!
aplease help