A B-4 Estes model rocket engine has a thrust curve as shown. Putting this engine

Question

A B-4 Estes model rocket engine has a thrust curve as shown. Putting this engine in a 100 g rocket (including the weight of the engine and discounting the loss in mass as the fuel burns), and firing the rocket straight up, how high will the rocket go before the fuel is gone?

b) how high after that?

Please guide me through how you came to your answer.

A B-4 Estes model rocket engine has a thrust curve as shown. Putting this engine in a 100 g rocket (including the weight of the engine and discounting the loss in mass as the fuel burns), and firing the rocket straight up, how high will the rocket go before the fuel is gone? how high after that?

Explanation / Answer

area under given curve=change in energy=mgh
aprroximate area=12.75*.1*3=3.825
===>mgh=.1*9.8*h
h=3.9m

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