In an arrangement shown , bob A on the left is pulled aside . It is then released and allowed to collide with other bob B which is at rest . A perfectly inelastic collision occurs and the system rises to a height h/4 . The ratio of the masses of the bobs is

A body of mass 20 gm is moving with a certain velocity. It collides with another body of mass 80 gm at rest. The collision is perfectly inelastic. The ratio of the kinetic energies before and after collision of the system is

In the figure, pendulum bob on left side is pulled a side to a height h from its initial position. After it is released it collides with the right pendulum bob at rest, which is of the same mass. After the collision the two bobs stick together and raise to a height :-

A block of mass 1 kg moving with a speed of 4 ms^(-1) , collides with another block of mass 2 kg which is at rest. The lighter block comes to rest after collision. The loss in KE of the system is

mass ‘m’ is projected vertically upwards with a speed ‘u’ and at the same instance another particle of mass ‘m’ is released from height ‘h’ vertically above the first particle. The two particles suffer a perfectly inelastic collision, and again reach a maximum height ‘h’ as one combined particle. What is the value of u?

A particle A of mass m and initial velocity v collides with a particle of mass m//2 which is at rest. The collision is head on, and elastic. The ratio of the de-broglie wavelength lambda_(A) and lambda_(B) after the collision is

A ball of mass m moving horizontally at a speed v collides with the bob of a simple pendulum at rest. The mass of the bob is also m. If the collision is perfectly inelastic and both balls sticks, the height to which the two balls rise after the collision will be given by:

A particle of mass m moving with speed u collides perfectly inelastically with another particle of mass 3 m at rest. Loss of KE of system in the collision is

A particle of mass m moving with speed u collides perfectly inelastically with another particle of mass 2m at rest. Find loss of kinetic energy of system in the collision.

The bob A of a pendulum released from horizontal to the vertical hits another bob B of the same mass at rest on a table as shown in figure. If the length of the pendulum is 1m, calculate (a) the height to which bob A will rise after collision. (b) the speed with which bob B starts moving. Neglect the size of the bobs and assume the collision to be elastic.

A bob of mass m connected to the end of an inextensible string of length l , is released from position shown in figure. If impacts of bob with smooth floors is perfectly inelastic. Choose the correct options (s)