Find the mass M of the hanging block in figure (5-E16) which will prevent the smaller block from slipping over the triangular block. All the surfaces are frictionless and the strings and the pulleys are light.
Given:
Block ‘m’ will have the same acceleration as that of M’, as it does not slip over M ‘.
Refer the attachment for the Free body diagrams,
T + Ma – Mg = 0 …(i)
T – M’a – Rsinθ = 0 …(ii)
Rsinθ – ma = 0
Rcosθ – mg = 0
Eliminating T, R and a from the above equations, we get: M=