Question

a field gun of mass 1.5 tonne fires a shell of mass 15 kg with a velocity of 150 metre per second. Calculate the velocity of recoil of gun.

Answer 1

The velocity of the gun during recoiling is 1.5 m/s

Explanation:

m1 = Mass of gun = 1.5 tonne

V1 = velocity of gun

m2 = mass of bullet = 15 kg

V2 = velocity of bullet = 150 m/s

Both are at rest therefore the momentum is zero.

According to the law of linear momentum.

0 = m1v1 + m2v2

0 = 1500 v1 + 15 x 150

0 = 10 v1 + 15

v1 = -15 /10

v1 = -1.5 m/s ( Negative sing shows the opposite direction of gun)

Hence the velocity of the gun during recoiling is 1.5 m/s

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From a rifle of mass 4 kg, a bullet of mass 50g is fired with an initial velocity of 35 m/s. callcuate the initial recoil velocity of the rifle  ?

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Answer 2

Answer:

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