Two objects, one of mass m₁ = 2 kg and the second of unknown mass, are connected by a compressed spring with negligible mass. The system is at rest on a frictionless table. Both objects are released simultaneously. m₁ is observed to recoil with velocity v₁ = 2 m/s , and m₂ shots forward with velocity v₂ = 4 m/s . What is the mass of m₂? A) 0.5 kg B) 1 kg C) 2 kg D) 4 kg E) cannot be determined

Question

Quizplus · Accepted Answer

By conservation of momentum, we have: m₁v₁ = m₂v₂ 2kg × 11.2 m/s = m₂ × 4 m/s m₂ = 0.5 kg Therefore, the answer is (B) 0.5 kg.

Two Objects, One of Mass M1 = 2 Kg and the Second

Two Objects, One of Mass M₁ = 2 Kg and the Second