20 Two blocks M and M having equal r are to move on a

Last updated: 6/9/2023

20 Two blocks M and M having equal r are to move on a horizontal frictionless surface Mis attached to a massless spring as shown in figure Initially M is at rest and M is moving toward M with speed v and collides head on with M M m M m booooo a While spring is fully compressed all the kinetic energy of M is stored as potential energy of spring b While spring is fully compressed the system s momentum is not conserved though final momentum is equal to initial momentum If spring is massless the final state of the Mis state of rest c d If the surface on which blocks are moving has friction then collision cannot be elastic A block of mass m 2 kg is resting on a rough