NEET Physics Question - Center of Mass , Momentum and Collision

Rankers Physics

Topic: Center of Mass , Momentum and Collision

Subtopic: Momentum Conservation

A 6 kg box is travelling on ice at a speed of 9 m/s when a 12 kg packet is gently placed on it. The velocity will now be

3 m/s

4 m/s

6 m/s

8 m/s

From Principal of conservation of momentum

m ₁ v ₁ = (m ₁+ m ₂) v

6 × 9 = ( 6 + 12) × v ⇒ v = 3 m/s