Question

In the Figure block A is one fourth the length of the block B and there is no friction between block B and surface on which it is placed. The coefficient of sliding friction between A and B. Block C and block A have the same mass and mass of B is four times mass of A. when the system is released, calculate the distance the block B moves when only three fourth of block A is still on the block B.

Answer 1

Length of block A = \(\frac{\ell}4\)

⇒ Distance travelled by A relative to B

Answer 2

\(\frac{13 \mu \ell}{16(2-3\mu)}\)