A 5000 kg rocket is set for vertical firing. The exhaust speed is $800 m s^{- 1}$ .To give an intial upward acceleration of 20 $m / s^{2}$ , the amount of gas ejected per second to supply the needed thrust will be ( $g = 10 m s^{- 2}$ )

127.5 k g s^{- 1}

187.5 k g s^{- 1}

185.5 k g s^{- 1}

137.5 k g s^{- 1}

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A 5000 kg rocket is set for vertical firing. The exhaust speed is

800 m s^{- 1}

.To give an intial upward acceleration of 20

m / s^{2}

, the amount of gas ejected per second to supply the needed thrust will be (

g = 10 m s^{- 2}

)

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Question Text

A 5000 kg rocket is set for vertical firing. The exhaust speed is

800 m s^{- 1}

.To give an intial upward acceleration of 20

m / s^{2}

, the amount of gas ejected per second to supply the needed thrust will be (

g = 10 m s^{- 2}

)

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