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21 April, 13:35

A model rocket is fired vertically from rest. It has a constant acceleration of 16.4 m/s2 for the first 1.50 s. Then its fuel is exhausted, and it is in free fall. The rocket has a mass of 78.2 g; the mass of the fuel is much less than 78.2 g. Ignore air resistance. What was the downward net force on the rocket after its fuel was spent?

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  1. 21 April, 17:16
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    The force downward acting o the rocket is F=m*g=0.0782kg*9.8m/s^2=0.76636 N
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Home » Physics » A model rocket is fired vertically from rest. It has a constant acceleration of 16.4 m/s2 for the first 1.50 s. Then its fuel is exhausted, and it is in free fall. The rocket has a mass of 78.2 g; the mass of the fuel is much less than 78.2 g.
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