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Question 5443
NEET Physics · Hard

Laws of Motion: Advanced Newton's Laws MCQ

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Advanced Newton's LawsHardQuestion 5443

Question

A rocket of initial mass M burns fuel at rate r kg/s and ejects gas at speed v. The thrust is:
  1. A
    Mv
  2. B
    rv
    Correct
  3. C
    Mr
  4. D
    Mrv

Correct answer

rv

Explanation

Thrust = v_exhaust × (mass ejection rate) = v × r = rv.

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