A cubical block of side a is moving with velocity v on a horizontal smooth plane as shown. It hits a ridge at point O. The angular speed of the block after it hits O is:

A cubical block of side a is moving with velocity v on a horizontal smooth palne as shown . It hits a ridge at point O. The angular sped of the block after it hits O is

A cubical block of side a is moving with velocity V on a horizontal smooth plane as shown in Figure. It hits a ridge at point O. The angular speed fo the block after it hits O is

A block of mass m moving with velocity v_(0) on a smooth horizontal surface hits the spring of constant k as shown. Two maximum compression in spring is

A triangular block ABC of mass m and side 2a lies on a smooth horizontal plane is shown. There point masses of the m each strikes the block at A, B and C with speed as shown. After the collision the particle come to rest. Then

A block of mass m is placed on an inclined plane which is moving with constant velocity v in horizontal direction as shown in figure. Then find out work done by the friction in time t if the block is at rest with respect to the incline plane.

A heavy block B is sliding with constant velocity u=5m//s on a horizontal table. The width of the block is L=4m . There is an insect A at distance d=3m from the block as shown in the figure. The insect wants to cross to the oposite side of the table. It begins to crawl at a constant velocity v at the instant shown in the figure. Find the least value of v (in m/s) for which the insect can cross to the other side without getting hit by the block.