(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A 128 N carton is pulled up a frictionless baggage ramp inclined at 30.0 degrees above the horizontal by a rope exerting a 72.0 N pull parallel to the ramp's surface. If the carton travels 5.20 m along the surface of the ramp, calculate the work done on it by the rope, gravity, and the normal force of the ramp.

2. Relevant equations

W= force*cos(theta)* displacement

3. The attempt at a solution

Work done on carton by ROPE W=72cos(30)*5.2 Answer comes out to 324 J, which is wrong.

Work done on carton by GRAVITY W=128cos(30)*5.2 Answer comes out to 576 J, which is wrong...

What am I getting incorrect about this????

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# Homework Help: Work done to crate on angle

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