A rocket burns 0.01kg of fuel each second and ejects it a...
A rocket burns 0.01kg of fuel each second and ejects it as a gas with a velocity of 5,000m/s. What force does the gas exert on the rocket?
500,000N
500N
50N
5,000N
50,000N
Correct answer is C
F =m(v−u)T
= 0.01(5000−0)1
= 50N
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