Fuel was consumed at a steady rate of 5.0 x 10-2kg per second in a...

WAEC 2005

Fuel was consumed at a steady rate of 5.0 x 10^-2kg per second in a rocket engine and ejected as a gas with a speed of 4 x 10³ms^-1. Determine the thrust on the rocket

A. 20N
B. 80N
C. 200N
D. 800N

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Correct Answer: Option C

Explanation

F = ma = \(\frac{mv}{t} = \frac{5 \times 10^{-2} \times 4 \times 10^{3}}{1}\)

= 200N

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Fuel was consumed at a steady rate of 5.0 x 10-2kg per second in a...

Correct Answer: Option C

Explanation

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