n Figure 7-32, a constant force of magnitude 82.0 N is applied to a 3.00 kg shoe box at angle f = 53.0°, causing the box to move up a frictionless ramp at constant speed. How much work is done on the box by when the box has moved through vertical distance h = 0.150 m??
see link for picture of figure... http://www.lowellphysics.org/beta/T...rk/Problems/c07x7_11.xform_files/nw0314-n.gif
The Attempt at a Solution
I think I should be using W=fdcos(theta)...but since the displacement given is verticle instead of horizontal, i don't think i could use h=.150m without manipulating the problem more. but i am also confused because they do not give the angle of the incline, so i cannot figure out what the angle between the force and displacement is. Perhaps I am just missing a simple geometry relationship, but I cannot figure out what. Please help! This problem is really bothering me because it doesn't seem to be a difficult one.