A bag of sand of mass m is suspended by a rope .A bullet of mass m/20 is fired at it with a velocity V and gets embedded into it. The velocity of the bag finally is

A body of mass a moving with a velocity b strikes a body of mass c and gets embedded into it. The velocity of the systems after collision is

A wooden log of mass M and length L is hinged by a frictionless nail at O.A bullet of mass m strikes with velocity v and sticks to it. Find angular velocity of the system immediately after the collision aboutO.

A bullet of mass m and velocity v is fired into a large block of mass M . The final velocity of the system is

A bullet of mass 0.1 kg is fired with a speed of 100 m//sec , the mass of gun is 50 kg . The velocity of recoil is

A bullet of mass 0.1 kg is fired with a speed of 100 m//sec , the mass of gun is 50 kg . The velocity of recoil is

A bullet of mass 10 g is fired from a gun of mass 1 kg with recoil velocity of gun 5 m/s. The muzzle velocity will be

A frequently used device to measure the speed of bullets is the ballistic pendulum. It comprises of a heavy block of wood of mass M suspended by two long chords. A bullet of mass m is fired into the block horizontally. The block, with the bullet embedded in it, swings upwards. The centre of mass of the combination rises through a vertical distance h before coming to rest momentarily. In a particular experiment, a bullet of mass 40 gm is fired into a wooden block of mass 10 kg. The block is observed to rise by a height of 20.0 cm. Initial speed of the bullet is

A frequently used device to measure the speed of bullets is the ballistic pendulum. It comprises of a heavy block of wood of mass M suspended by two long chords. A bullet of mass m is fired into the block horizontally. The block, with the bullet embedded in it, swings upwards. The centre of mass of the combination rises through a vertical distance h before coming to rest momentarily. In a particular experiment, a bullet of mass 40 gm is fired into a wooden block of mass 10 kg. The block is observed to rise by a height of 20.0 cm. If the bullet penetrates the block to a depth of 3.0 cm, the approximate average force of resistance by the block of wood is

A frequently used device to measure the speed of bullets is the ballistic pendulum. It comprises of a heavy block of wood of mass M suspended by two long chords. A bullet of mass m is fired into the block horizontally. The block, with the bullet embedded in it, swings upwards. The centre of mass of the combination rises through a vertical distance h before coming to rest momentarily. In a particular experiment, a bullet of mass 40 gm is fired into a wooden block of mass 10 kg. The block is observed to rise by a height of 20.0 cm. Fraction of initial energy lost in the collision

A bullet of mass m moving with velocity v strikes a block of mass M at rest and gets embedded into it. The kinetic energy of the composite block will be