Jee Advanced
Laws Of Motion
IIT-JEE 2008 Paper 1 Offline
MCQ+3 / -12008
A small block of mass M moves on a frictionless surface of an inclined plane, as shown in figure. The angle of the incline suddenly changes from 60\(^\circ\) to 30\(^\circ\) at point B. The block is initially at rest at A. Assume that collisions between the block and the incline are totally inelastic (g = 10 m/s\(^2\)).
The speed of the block at point B immediately after it strikes the second incline is