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Problem: A model rocket blasts off and moves upward with an acceleration of 11m/s2 until it reaches a height of 30m, at which point its engine shuts off and it continues its flight in free fall.
Part I: What is the total duration of the rocket's flight?
I need help to solve the above problem and express your answer using two significant figures.
A 2000-kg car moving with a speed of 20 m/s collides with andsticks to a 1500kg car at rest at a stop sign. Show that because momentum is conserved in the rest frame, momentum is also conservedin a reference frame moving with a speed of 10 m/s in the..
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