A \"bottle rocket\" is a type of firework that has a long thin tail that you ins

Question

A "bottle rocket" is a type of firework that has a long thin tail that you insert into an empty bottle, to provide a launch platform. One of these rockets is fired with the bottle pointing vertically upward. An identical rocket is fired with the bottle lying on its side, pointing horizontally. In which case does the rocket leave the bottle with the greater acceleration?
a) the acceleration of the rocket will be same in both cases.
b) when the rocket is fired vertically.
c) when the rocket is fired horizontally.

Explain, ignoring air resistance and friction.

Explanation / Answer

a) acceleration will be same in both case as there would be same impulse in both the case.

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