Question

Bullets are fired from a gun at the rate of 30 per minute . If 12N of force is required to keep the gun in position, find the speed of each bullet. Mass of each bullet is 30 gram. PLEASE ANSWER FAST!!!!! WITH STEP BY STEP EXPLANATION PLEASE!!!​

Answer 1

Answer:

The correct answer is 10 N.

Explanation:

Calculate the change in the momentum for the 30 bullets by converting the mass of the bullet into kilogram and multiply it with velocity of the bullet.

Change in momentum= 50\times 10^{-3}\times 30\times 400Changeinmomentum=50×10

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×30×400

The expression for the force in terms of the change in momentum is as follows by using Newton's second law;

F=\frac{Changeinmomentuminbullets}{Time\ taken}F=

Time taken

Changeinmomentuminbullets

It is given in the problem that A machine gun has a mass of 5 kg.It fires 50 gram bullets at the rate of 30 bullets per minute at a speed of 400 m/s.

Put t= 1 min= 60 s and Change in momentum= 50\times 10^{-3}\times 30\times 400Changeinmomentum=50×10

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