STANDARDPhysics-Laws of Motion
STANDARD Physics Rocket Propulsion MCQ Question
Type: MCQ-numerical-Medium-Class 11
If the force on a rocket, moving with a velocity of 300 m s⁻¹ is 210 N, then the rate of combustion of the fuel is
A
0.07 kg s⁻¹
B
1.4 kg s⁻¹
C
0.7 kg s⁻¹
D
10.7 kg s⁻¹
Correct Answer
Option C
Detailed Explanation
Using the formula F = v(dm/dt), the rate of combustion is calculated as 0.7 kg s⁻¹.
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