A shell of mass m is fired from a gun of mass km which can reecoil freely on a horizontal plane, the elevation of the gun is `45^(@)`. Find the ratio of te energy of the shell to that of the gun.

A bullet of mass m is being fired from a stationary gun of mass M. If the velocity of the bullet is v, the velocity of the gun is-

A shell of mass 6 kg is fired from a gun of mass 600 kg. If the recoil velocity of the gun is 3 m/s , find the muzzle velocity of the shell.

A shell of mass 0.020 kg is fired by a gun of mass 100 kg. If the speed of the shell is 80 m/s , the recoil speed of the gun would be

A shell of mass 0.020 kg is fired by a gun of mass 100 kg. If the speed of the shell is 80 m/s , the recoil speed of the gun would be

A shell of mass 200g is fired by a gun of mass 100kg. If the muzzle speed of the shell is 80ms^(-1) , then the recoil speed of the gun is

A shell of mass 200g is fired by a gun of mass 100kg. If the muzzle speed of the shell is 80ms^(-1) , then the rcoil speed of the gun is

A shell of mass 200g is fired by a gun of mass 100kg. If the muzzle speed of the shell is 80ms^(-1) , then the rcoil speed of the gun is

A bullet fired from a gun. As a result the gun recoils the mass of the gun is 100 times the mass of the bullet. The ratio of the kinetic energies of the bullet and the gun will be

A loaded spring gun of mass M fires a bullet of mass m with a velocity v at an angle of elevation theta . The gun is initially at rest on a horizontal smooth surface. After firing, the centre of mass of the gun and bullet system