I believe that the conservative work on both the block and the ramp is done by gravity while the nonconservative work on both is by the normal force. I have updated the filled in chart I posted for part b and now think that the column for the block is: down and to the right arrow, +, + , NC, C...
Homework Statement
A block with mass m rests on a smooth, frictionless ramp with mass M and height h. The ramp itself sits on a frictionless horizontal surface in which it is free to slide. The block slides smoothly down the ramp from rest. We want to find the speed of the block after it has...
a. Apply Newton's Law in each direction for the two blocks to find 4 equations using the symbols given above.
b. Find an expression for the acceleration of m (the hanging block).
c. What does your answer in part b predict for the acceleration "a" if the hand stops pushing? Does this make...
Perhaps what I don't understand is which direction the acceleration of the two blocks is. If I knew that I would know which forces to set positive and negative.
I am still having difficulty forming the correct equations for part a. Here is my revised attempt.
a.
Mg - T - F0(cos theta) = Ma
and
T - mg = ma
b.
a = (Mg - mg - F0cos theta) / (m + M)
Can someone perhaps point out what mistake I made? I think it has to do with the direction of the...
I suppose that the two blocks have to move the same amount within the same amount of time since they are attached to the same string - therefore their accelerations are equal regardless of the forces.
Homework Statement
I have this homework question and was able to set up the free body diagrams for the two blocks but got stuck forming the equations in part a. Please help if you can and give explanations - I want to understand the concept for my test coming up.
A block with mass M is pushed...