Question

Please Help!! WILL MEDAL AND FAN!!

You are lowering two boxes, one on top of the other, down the ramp shown in the figure (Figure 1) by pulling on a rope parallel to the surface of the ramp. Both boxes move together at a constant speed of 17.0 cm/s . The coefficient of kinetic friction between the ramp and the lower box is 0.400, and the coefficient of static friction between the two boxes is 0.788.

Answer 1

What force do you need to exert to accomplish this?

What is the magnitude of the friction force on the upper box?

Answer 2

Here is the picture that goes along with the problem not sure how to start this problem....

Answer 3

For starters, look at it as 1 object



And it's moving BUT not not accelerating.... so \(\Sigma \vec F = \vec 0\)

So you resolve forces or do whatever you usually do, yes?!