a 2 kg plate kept sudpended in air by allowing 10 marbles hitting per

1.	a 2 kg plate kept sudpended in air by allowing 10 marbles hitting per sec with a speed v from the downward direction.if the mass of each marbles is 20 g then determine v
Answer» The mass of plate is M = 100 g = 0.1 kg ANSWER:- The mass of bullet is m = 5 g = 0.005 kg The bullets are fired at a rate of 10 bullets per second. Let v be the speed of each bullet. After colliding with the plate, they rebound with same speed. Thus, rate of change in momentum of the bullets, that is, the FORCE exerted by bullets is 2 v × 0.005 × 10 This BALANCES the weight of the plate. 2 v × 0.005 × 10 = 0.1 × 9.8 v = 9.8 m/s

a 2 kg plate kept sudpended in air by allowing 10 marbles hitting per sec with a speed v from the downward direction.if the mass of each marbles is 20 g then determine v

Answer»

The mass of plate is M = 100 g = 0.1 kg

ANSWER:-

The mass of bullet is m = 5 g = 0.005 kg

The bullets are fired at a rate of 10 bullets per second.

Let v be the speed of each bullet.

After colliding with the plate, they rebound with same speed.

Thus, rate of change in momentum of the bullets, that is, the FORCE exerted by bullets is

2 v × 0.005 × 10

This BALANCES the weight of the plate.

2 v × 0.005 × 10 = 0.1 × 9.8

v = 9.8 m/s

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a 2 kg plate kept sudpended in air by allowing 10 marbles hitting per sec with a speed v from the downward direction.if the mass of each marbles is 20 g then determine v​

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a 2 kg plate kept sudpended in air by allowing 10 marbles hitting per sec with a speed v from the downward direction.if the mass of each marbles is 20 g then determine v