The law that says every action has an equal and oppsite reaction: the momentum of the bullet is balanced by the equal momentum of the gun (and shooter) in the opposite direction - the recoil.
Because linear momentum is conserved. Before the shot, the momentum of (gun + bullet) is zero, so it has to be zero after the shot. The bullet gains forward momentum when fired, so the gun must gain reverse momentum in order to maintain the zero sum.
You can use conservation of momentum to solve this. Just multiply momentum (= mass x speed) for the bullet, and assume that the change in (mass x speed) for the gun must be the same.
A bullet fired from a gun
When a bullet is fired upwards vertically it gains kinetic energy.
And opposite momentum. Say bullet muzzle velocity = 15 000 metres per second Say bullet mass = 0.02 kilogram (20 grams) Say rifle mass = 3 kilogram Then > Bullet momentum = 0.02 * 15 000 = 300 kg - m/s Presume Rifle momentum the same , then 300 = 3 * ? ? = 100 metres per second
A gun recoils when bullet is fired off the gun.A swimmer pushes the water when he moves forward.
Yes.
=it is newtons third law of motion which states=="for every action there is an equal and opposite reaction"==when a gun is fired the bullet moves in the forward direction which is action whereas the gun recoils in the backward direction which is the reaction......................=
A gun recoils when bullet is fired off the gun.A swimmer pushes the water when he moves forward.
When a gun is fired a bullet (or cartridge) with a small mass but a very high velocity is ejected. The recoil of the gun is a reaction to this force and is sufficient to push back the person who fired the weapon.
You can use conservation of momentum to solve this. Just multiply momentum (= mass x speed) for the bullet, and assume that the change in (mass x speed) for the gun must be the same.
Because linear momentum is conserved. Before the shot, the momentum of (gun + bullet) is zero, so it has to be zero after the shot. The bullet gains forward momentum when fired, so the gun must gain reverse momentum in order to maintain the zero sum.
A gun recoils when fired due to the need to eject the casing and to recycle the pent up gas
No. Assuming the barrel is level (defined as perpendicular to the pull of gravity) then the bullet will leave the barrel horizontally and immediately begin to fall, like any other object subject to gravity. There are aerodynamic forces from air resistance, but these do not impart lift to the bullet. Often the gun recoils (per Newton's laws) in such a way as to raise the barrel after the bullet has fired.
Strictly speaking, I think all three of his laws of motion could apply, but I believe the answer to what you are asking is, the third law, "For every action, there is an equal and opposite reaction."
A bullet fired from a gun
When a bullet is fired upwards vertically it gains kinetic energy.