Question

A 2g bullet moving with a velocity of 200m/s. Is brought to a sudden stoppage the total heat produces goes to the bullet .

Answer 1

Heat is equal to kinetic energy of the bullet.

1/2 *0.002*200^2

= 40 j

Answer 2

The heat energy produced goes to the bullet is 40 J.

Explanation:

It is given that,

Mass of the bullet, m = 2 g = 0.002 kg

Speed of the bullet, v = 200 m/s

It brought to a sudden stoppage. We need to find the total heat produces goes to the bullet. The kinetic energy of the bullet gets transferred in the form of heat. It is given by :

$E=\dfrac{1}{2}mv^2$

$E=\dfrac{1}{2}\times 0.002\times (200)^2$

E = 40 J

So, the heat energy produced goes to the bullet is 40 J. Hence, this is the required solution.

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