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Orbital Velocity

A rocket cons...

Question

A rocket consumes 250 gm of fuel per second and ejects the gas with a speed of 8 km/s. Calculate the thrust exerted on the rocket by the ejected gas?

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Solution

$T h e t h r u s t e x e r t e d o n t h e r o c k e t F = M a s c o n s u m e d p e r s e c o n d \times v e l o c i t y o f e j e c t e d g a s T h e r e f o r e F = \frac{d M}{d t} \times V = 0.25 \times 8000 = 2000 N$

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Q. STATEMENT - 1 : Gas ejected from rocket will never exert thrust on the rocket if the ejected gas and the rocket move in the same direction.
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