Question

machine gun of mass 10 kg fires 20 gram bullet @ 10 bullets per second with a speed of 500 metre per second what is what force is required to hold a gun in position​

Answer 1

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nkalitabbbb6301

08.05.2018

Physics

Secondary School

+15 pts

Answered

A machine gun of mass 10kg fires 20g bullets at the rate of 10 bullets per second, with the speed of 500 m/s. What force is necessary to hold the gun in position?

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Answers

JinKazama1

JinKazama1 Ace

Final Answer : 100N

Steps :

1 ) We know that, Force is rate of change of momentum.

Here, momentum of bullet is changed from rest to 500m/s.

To control this change, we require force to hold the gun.

This, force.

2) Mass of bullet, m = 20/1000kg

No. of bullets fired per sec, = 10

Speed of bullet, = 500m/s

|F| = mass of bullet * speed of bullet * No. of bullets fired per sec.

= 20/1000* 500 * 10

= 100N

Therefore, 100 N of Force is required oposite to jer produced by recoil of gun.