A rocket burns fuel at the rate of 10kgs -1 and ejects it with velocity...
PHYSICS
JAMB 1993
A rocket burns fuel at the rate of 10kgs-1 and ejects it with velocity of 5 x 103ms-1. The thrust exerted by the gas on the rock is
- A. 2.5 x 107N
- B. 5.0 x 104N
- C. 5.0 x 102N
- D. 2.0 x 10-3N
Correct Answer: B. 5.0 x 104N
Explanation
Thrust = \(\frac{\text{mass x velocity}}{time}\)
= 10 x 5 x 103
= 5.0 x 104N
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