A small particle of mass m=2 kg moving with constant horizontal velocity u=10 ms−1 strikes a wedge shaped block of mass M=4 kg placed on the smooth surface as shown in figure. After collision, the particle starts moving up the inclined plane. Find the velocity of the wedge immediately after collision-
|Why this question ?
Caution: Since there will be impulsive force from the ground to wedge in vertical direction. Thus, momentum is not conserved in the vertical direction. Only horizontal direction momentum will be conserved.