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A 600 kg rocket is set for vertical firi...

A 600 kg rocket is set for vertical firing. If the exhaust speed is 1000m/s, the mass of the gas ejected per second to supply the thrust needed to overcome the weight of rocket is

A

`117.6kgs^(-1)`

B

`58.6kgs^(-1)`

C

`6kgs^(-1)`

D

`76.kgs^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
Thrust `=(udM)/(dt)= mg rArr (dM)/(dt)=(mg)/(u)=(600xx10)/(1000)`
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