Question

From a rifle of mass 5kg, a bullet of mass 50g is fired with an initial velocity of 30m/s. Calculate the initial recoil velocity of the rifle. best answer will get BRAINLIEST

Answer 1

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Answer 2

To find :

the initial recoil velocity of the gun

Given :

• mass of bullet = 50 g = 0.05 kg
• mass of gun = 5 kg
• velocity of bullet = 30 m/s

Formula to be applied:

• momentum = velocity × mass

Solution :

mass of the bullet = 0.05 kg.

initial velocity = 30 m/s

hence, momentum at starting point

= 0.05 × 30 m/s.

= 1.5 kg m/s

hence, recoil velocity of the gun

= momentum of bullet / mass of gun

= 1.5 kg / 5

= 0.3 m/s

hence, the initial recoil velocity of gun is 0.3 m/s