Chemistry, asked by manansharmafeb2007, 1 day ago

A 20 g bullet is short from a 5 kg gun with a velocity of 500 m/s. What is a speed of the recoil of the gun.​

Answers

Answered by 10thguruclass
0

Answer:

The speed of recoil of the gun is 2 m/s.

Explanation:

Mass of bullet, m = 20 g = 0.02 kg

Mass of gun, M = 5 kg

Velocity of bullet, v = 500 m/s

Recoil velocity of the gun, V = ?

Initially, the gun and bullet were at rest, so, the initial momentum of the system is, Pi = 0

After firing the momentum of the system = momentum of gun + momentum of bullet

=> Pf = MV + mv

=> Pf = 5V + (0.02)(500)

=> Pf = 5V + 10

By conservation of momentum,

Pf = Pi

=> 5V + 10 = 0

=> V = -10/5 = -2 m/s

Thus, the recoil velocity of the gun is oppositely directed with respect to the velocity of the bullet.

The speed of recoil of the gun is 2 m/s.

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