Q. A block of mass m is moving with speed v on a wedge of mass M which is placed a horizontal surface. Track AB is a circular track of radius R. What is the minimum speed v, so that the block reaches point (A - surfaces are frictionless)? Share with your friends Share 26 Shobhit Mittal answered this when the block reach at highest point then the velocity of block m y component be u=0 .from momentum conservation in x direction at highest point the speed in x direction would be same of both wedge and the block .mv=M+mv'v'=mvM+mconserve the energymv22=M+mv'22+mgRv2=mM+mvM+m2+gRv2=mv2M+m+gRv2MM+m=gRv=gRMM+mRegards -16 View Full Answer