A bullet of mass `7kg` is fired into a block of metal weighing `7kg` The block is free to move Caluculte initial velocity of the bullet if the velocity of the block with the bullet in is `0.7m//s` .

A bullet of mass 7g is fired into block weighing 7kg , which is free to move. Calculate initial velocity of bullet if the velocity of the block with the bullet inside is 0.7m//s .

A bullet of mass 4 g is fired with a velocity of 600 ms^(-1) into a block of metal weighing 9.996kg . The block is free to move. Calculate the common velocity of the bullet and block after the impact.

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 40g is fired from a gun of mass 10 kg. If velocity of bullet is 400 m/s, then the recoil velocity of the gun will be

An 8 gm bullet is fired horizontally into a 9 kg block of wood and sticks in it. The block which is free to move, has a velocity of 40 cm//s after impact. The initial velocity of the bullet is

A bullet of mass 40 g is fired from a gun of mass 10 kg. If velocity of bullet is 400 m/s. then the recoil velocity of the gun wil be

A bullet of mass 40 g is fired from a gun of mass 10 kg. If velocity of bullet is 400 m/s. then the recoil velocity of the gun wil be

A bullet of mass a and velocity b is fired into a large block of mass c. the final velocity of the system 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