pl answer Q 3 (more than one answer type)

pl answer Q 3 (more than one answer type) 4 4 C) componenet of 0B along AB is 4 D) Component Of along AB is— 1 2. A ball of mass m is released from rest at position A. The mass of the wedge is 2m. When ball point B then A) velocity of ball w.r.t. ground = 2 3 gR B) velocity wedge 3 3gR C) Velocity of ball w.r.t. wedge — 2 D) velocity of ball w.r.t. wedge = 3 2m B 3. A block of mass m moving with a velocity vo collides with a stationary' block of mass M at the block of which a spring of stiffness k is attached, as shown. choose the correct alternative(s) A) The velocity of the centre of mass is B) The initial kinetic energy of the system in the centre of mass frame is mM I C) The maximum compression in the spring is Vo D) When the spring is in the state of maximum compression, the kinetic energy of the centre mass frame is ¯ 4. A ball hits a floor and rebounds after an inelastic collision, In this Case A) total energy of the ball and the earth remains the Same B) total momentum of the ball and the earth is conserved C) momentum of the ball just after the collision is same as that just before the collision D) None of these 5, Six identical elastic balls are suspended in a row on strings of equal length that the distances tween adjacent balls are very small as shown. How will the balls behave if two extreme balls 110