Recent content by HeavenWind

To be more specific, here is what my friend did, not sure if it is correct: To derive the expression for the work done on the block by friction at time t, we need to consider the forces acting on the block. Let's assume that the inclined plane makes an angle θ with the horizontal. The force...

We want to figure out how much work friction does on a block as it slides down an inclined plane with a rough surface. we find the force due to gravity that pulls the block down the ramp, that's found by M * g * sin(θ), The normal force on the block is given by M * g * cos(θ). The force of...