STANDARDPhysics-Laws of Motion
STANDARD Physics Rocket Propulsion MCQ Question
Type: MCQ-numerical-Medium-Class 11
A rocket of initial mass 6000 kg ejects gases at a constant rate of 16 kg s⁻¹ with constant relative speed of 11 km s⁻¹. What is the acceleration of the rocket one minute after the blast?
A
25 m s⁻²
B
50 m s⁻²
C
10 m s⁻²
D
35 m s⁻²
Correct Answer
Option D
Detailed Explanation
The acceleration of the rocket at any instant t is given by the formula a = (v_r * dm/dt) / (M - t * dm/dt). Substituting the given values, we find the acceleration to be approximately 35 m s⁻².
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