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4 November, 07:45

A model rocket is shot straight upward with an initial velocity of 32 m/s. Its upwards acceleration is a constant 6 m/s2. When the fuel is used up at a height of 75m, what is its velocity

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  1. 4 November, 08:09
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    Using kinematic equation, v² - u² = 2as. u=32m/s. (a) net = 6-9.8 = - 3.8m/s². plug these values of u and anet in above equation. v² = 32²-2*3.8*75 = 454. v=√454 = 21.30m/s.
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