Two blocks are arranged as shown. The pulley can be considered to be massless, and friction is negligible. M1 is four times more massive than M2.

M1--->0(Pulley)
V
V (down direction)
V
M2

If the system is released from rest, how far will M1 travel in 0.523 s?

2 answers

M2 is supposed to be hanging down from the pulley
The pulling force is M2*g
The moving mass is (M1+M2)

F=ma
M2*g=(M1+M2)a
solve for a

d=1/2 a t^2