A bullet emerges from a barrel of length `1.2 m` with a speed of `640 ms^(1)`. Assuming constant acceleration, after the gun is fired is

A bullet emerges from a barrel of length 1.2 m with a speed of 640 m/s. Assuming constant acelaration, the approximate time that it spends in the barrel after the gun is fired is -

A bullet comes out of the barrel of gun of length 2 meter with a speed of 20 m/s. The average acceleration of the bullet is ...... m//s^(2).

A machine gun of mass 10 kg fires 20 g bullets at the rate of 10 bullets per second with a speed of 500 ms^(-1) . What force is required to hold the gun in position ?

A machine gun has a mass 4 kg. It fires 50 gram bullets at the rate of 45 bullets per minute at a speed of 400 ms^(-1) . What force is required to keep the gun in position ?

A machine gun is mounted on an armored car moving with a speed of 20 ms^(-1) . The gun point against the direction of motion of car. The muzzle speed of bullet is equal to speed of sound in air i.e., 340 ms^(-1) . The time difference between bullet actually reaching and sound of firing reaching at a target 544 m away from car at the instant of firing is reaching at a target 544 m away from car at the instant of firing is

A machine gun is mounted on an armored car moving with a speed of 20 ms^(-1) . The gun point against the direction of motion of car. The muzzle speed of bullet is equal to speed of sound in air i.e., 340 ms^(-1) . The time difference between bullet actually reaching and sound of firing reaching at a target 544 m away from car at the instant of firing is reaching at a target 544 m away from car at the instant of firing is