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(Solved): The second stage of the two-stage rocket weighs 2900 lb (empty) and is launched from the first stag ...



The second stage of the two-stage rocket weighs 2900 lb (empty) and is launched from the first stage with a velocity of

3000m(i)/(h)

. The fuel in the second stage weighs 1000 lb . It is consumed at the rate of

50l(b)/(s)

and ejected with a relative velocity of

6500f(t)/(s)

. Neglect the effect of gravitation. Part A Determine the acceleration of the second stage just after the engine is fired. Express your answer to three significant figures and include the appropriate units.

a=

Part B What is the rocket's acceleration just before all the fuel is consumed? Express your answer to three significant figures and include the appropriate units.

a=


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