MDCAT Physics MCQ #2105

A 2 kg object moving at 4 m/s collides and sticks to a 3 kg object at rest. What is their combined velocity?

MDCAT Physics MCQ #2105

  1. Question 1

    Q1. A 2 kg object moving at 4 m/s collides and sticks to a 3 kg object at rest. What is their combined velocity?

    • A) 1.6 m/s
    • B) 2.0 m/s
    • C) 4.0 m/s
    • D) 3.0 m/s

    Answer: 1.6 m/s

    Explanation: Conservation of momentum: (2×4) = (5)v → v=1.6 m/s. Option B ignores the combined mass.