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Question 30569
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Center of Mass, Momentum and Collision: JEE — Thrust Force MCQ

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JEE — Thrust ForceHardQuestion 30569

Question

A rocket has initial mass 2000 kg and burns fuel at 10 kg/s with exhaust velocity 3000 m/s. Initial thrust is:
  1. A
    6000 N
  2. B
    30000 N
    Correct
  3. C
    20000 N
  4. D
    3000000 N

Correct answer

30000 N

Explanation

Thrust = u × (dM/dt) = 3000 × 10 = 30000 N = 30 kN.

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