Question

a hunter has a machine gun that can fire 50 gram bullets with a velocity of 150 metre per second. A 60 kg tiger springs at him with a velocity of 10 metre per second find the number of bullets must Hunter fire per second into the tiger in order to stop him in his track.

Answer 1

Explanation:

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Answer 2

Given:-

Mass of Bullet = 50 g

velocity = 150 m/s

Mass of tiger = 60 kg

Velocity = 10 m/s

To Find:-

No. of bullets = ?

Solution:-

Let n bullets be fired in 1s. To stop the tiger in his track, momentum of bullets = momentum of tiger,

$\sf n(50 \times {10}^{ - 3} ) \times 150 = 60 \times 10 \\ \\ \sf n = \frac{60 \times 10}{50 \times {10}^{ - 3}150 } = 80$