Question

A bullet of mass 10 g is fired at a speed of 200 m/s from a gun of mass 4 kg. What is the recoil velocity of the gun?

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Answer 1

Answer:

Hey mate ur answer,

Step-by-step explanation:

Given, m1(bullet) =10g =0.10 kg

m2 (gun) =4 kg

u1 = 0 m/s

u2 = 0 m/s

v1 = 200 m/s

v2 =?

m1u1+m2u2 =m1v1 +m2v2

0.10 × 0 + 4 kg × 0 = 0.10 × 200 + 4 kg × v

0 = 20 + 4v

- 20 = 4v

-20 /4 =v

-5 = v

therefore the recoil velocity of the gun is -5 m/s.

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