Physics, asked by anjali690, 9 months ago

a bullet of mass 40gm is fired from a gun of mass 8kg with a velocity of 800 m/s, calculate the recoil velocity of gun

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Answered by Anonymous

This is based on the conservation of momentum, according to this the momentum of bullet should be equals to momentum of gun.

Pbullet = Pgun

P= mv

Mass of bullet is 20 gm= 0.02 kg , velocity= 400m/sec

Mass of gun = 8kg, and let velocity is V

So, 0.02×400 = 8×V

So, V= 1 m/sec

This is the recoil velocity of gun

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Answered by sj4362860

Answer:

Let velocity of gun is v.

There is no external force acting, so linear momentum will conserve.

Before the firing, Linear Momentum =0

After the firing, Linear momentum =0.04×400+10×v

⇒0.04×400+10×v=0 ⇒v=−1.6m/s

Hence, 1.6m/s opposite to the direction of the bullet.

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a bullet of mass 40gm is fired from a gun of mass 8kg with a velocity of 800 m/s, calculate the recoil velocity of gun ​

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a bullet of mass 40gm is fired from a gun of mass 8kg with a velocity of 800 m/s, calculate the recoil velocity of gun