From a rifle of mass 4kg,a bullet of mass 50g is fired with an initial velocity of 35 m/s.calculate the initial recoil velocity of the rifle
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✓ Mass of the rifle, m₂ = 4 kg
✓ Mass of bullet, m₁ = 0.05 kg
Then,
m₁v₁ + m₂v₂ = m₁u₁ + m₂u₂
⇒ 0.05 × 35 + 4v₂ = 0 + 0
⇒ v₂ = - 0.05 × 35 / 4 ⇒ v₂ = - 0.44 ms⁻¹
Cheers!
✓ Mass of the rifle, m₂ = 4 kg
✓ Mass of bullet, m₁ = 0.05 kg
Then,
m₁v₁ + m₂v₂ = m₁u₁ + m₂u₂
⇒ 0.05 × 35 + 4v₂ = 0 + 0
⇒ v₂ = - 0.05 × 35 / 4 ⇒ v₂ = - 0.44 ms⁻¹
Cheers!
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above answer will be helping u
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