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09-08-2008   #1 (permalink)
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Default [Another] Physics Help

A 270g model rocket is fired straight up. For the first 2.00s its engine provides a constant upward force of 11.0N. The fuel is then used up and it continues under the normal action of gravity. How high does it go in total?

(Gravity also acts on the rocket. Assume that the mass is essentially constant and friction is negligible.)