Consider the two pulley arrangements in Figure 4.29. In both cases, a crate of mass is...

Consider the two pulley arrangements in Figure 4.29. In both cases, a crate of mass is attached to one end of a string. In Figure 4.29A, the other end of the string is tied to a crate of mass , so there is a force from gravity of magnitude acting on this crate. In Figure 4.29B, crate is replaced by a person who pulls on the string, and we suppose he pulls with a force equal to Will the acceleration of be the same in these two cases?

(reference figure 4.29A and 4.29B)