1. There is a system of two blocks tied to each other. There is a force F on the small block causing the system to move at a certain acceleration.
Find the acceleration.
2. (This is the one I'm not sure about) Instead of force F, we add a pulley with a weight that's equal to force F. Will the acceleration become smaller/bigger/remain the same?
The Attempt at a Solution
1. Net force = ma
a = Net force (F) / total mass (m+M) = F/(m+M)
2. Logically I feel like it doesn't matter "which force" pulls the system, to the right. But if we use the equation, then a = F/ total mass and in this case there are three masses instead of two, so acceleration is smaller?
Is this correct? I am confused...