A rocket motor consumes one quintal of fuel per second. The exhaust speed of gasses w.r.t. rocket is 5 km/s. The force exerted on the rocket and velocity acquired by the rocket, when its mass reduces to 1/100th of its initial mass is:a)b)c)d)Correct answer is option 'A'. Can you explain this answer?

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A rocket motor consumes one quintal of fuel per second. The exhaust speed of gasses w.r.t. rocket is 5 km/s. The force exerted on the rocket and velocity acquired by the rocket, when its mass reduces to 1/100th of its initial mass is:

Correct answer is option 'A'. Can you explain this answer?

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A rocket motor consumes one quintal of fuel per second. The exhaust sp...

u = -5km/s = -5 x 10³m/s

F = -(-5 x 10³) (100) = 5 x 10⁵N

= 5 x 10³log_e100 = (5 x10³)
= 5 x 10³ x 2.303 x 2
= 2.303 x 10⁴ m/s.

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