As you push the wagon up the incline, the component of gravity parallel to the incline ( ) is what counteracts the force you're providing. So, the force you provide must be equal to this (in which case the wagon would be moving at a constant velocity) or greater (in which there will be a net force accelerating the wagon upward).
April 28th 2008, 06:26 PM
I'm inputting [20(9.8)sin(0.5)] into the program accepting my answers and it is claiming it incorrect. Am I doing something wrong?
Edit: The program is at fault, thanks for the help!