JEE Physics · Medium

Laws of Motion and Friction: Connected Bodies MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Connected BodiesMediumQuestion 30211

Question

Two blocks A (3 kg) and B (2 kg) are connected by a string on a frictionless surface. A horizontal force of 10 N is applied on A. The acceleration of the system is:
  1. A
    2 m/s²
    Correct
  2. B
    3.33 m/s²
  3. C
    5 m/s²
  4. D
    10 m/s²

Correct answer

2 m/s²

Explanation

Total mass = 3 + 2 = 5 kg. Acceleration = F/m_total = 10/5 = 2 m/s².