Two blocks, of mass M and m, are in contact on a horizontal, frictionless table (w/ the block of mass M on the left and block of mass m on the right). A force F1, is applied to the block of mass M and the two blocks move together to the right.
a. Draw a FBD
b. Suppose the larger block M exerts a force F2 on the smaller mass m. By N3, the smaller block m exerts a force F2 on the larger block M. Argue whether F1 = F2 or not.
c. Derive an expression for the acceleration of the system.
d. Derive an expression for the magnitude of the force F2 that the larger block exerts on the smaller block.
e. Choose different values of M and m and compare the magnitudes of F1 and F2
The Attempt at a Solution
a. see attachment
b. acc. to N3, "for every action, there's an equal and opposite reaction force" so F1 = F2 >> the thing is what if M is accelerating?
c. a = Fnet/m
d. F2 = ma
....is what i'm doing here...right?