Rocket Ejection Rate (Jee Mains) | ExamDuo
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Newton's laws of motion
Medium
Rocket Ejection Rate
A 5000 kg rocket is set for vertical firing. The exhaust speed is 800 m/s. To give an initial upward acceleration of 20 ms⁻², the amount of gas ejected per second to supply the needed thrust will be (g = 10 m/s²)
SELECT ONE OPTION
A
187.5 kg/s
B
157.5 kg/s
C
137.5 kg/s
D
127.5 kg/s
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