A car has a gun mounted on it. The combined system has a mass 10m and moves with a velocity V. The barrel of the gun makes an angle 37° with the horizontal. A shell of mass m leaves the barrel at a speed 50 m/s relative to barrel in the forward direction. The speed v of the car so that it may stop after the firing is

A railway flat car has an artillery gun installed on it. The combined system has a mass M and moves with a velocity V . The barrel of the gun makes an angle a with the horizontal. A shell of mass m leaves the barrel at a speed v relative to the barrel. The speed of the flat car so that it may stop after the firing is

A railway flat car, whose mass together with the artillery gun is M = 2 m , moves at a speed V . The gun barrel makes an angle alpha = 60^(@) with the horizontal. A shell of mass m leaves the barrel at a speed v = 12 ms^(-1) , relative to the barrel. Find the speed of the flat car V (in ms^(-1) ) in order that it may stop after the firing.

A gum (mass=M) fires a bullet (mass=m) with speed v_r relative to barrel of the gum which is inclined at an anlge of 60^@ with horizontal. The gun is placed over a smooth horizontal surface. Find the recoil speed of gun.

A bullet of mass 50 kg is fired with a speed of 200 m//s from a gun of mass 2 kg . Find the recoil velocity of the gun.

A car of mass m moves in a horizontal circular path of radius r metre. At an instant its speed is V m//s and is increasing at a rate of a m//sec^(2) .then the acceleration of the car is