Science Homework Help

5. A test rocket is launched vertically from ground level (y = 0 m), at time t = 0.0 s. The rocket engine provides constant upward acceleration during the burn phase. At the instant of engine burnout, the rocket has risen to 49 m and acquired a velocity of  What is the maximum height that the rocket will reach?

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6.	Aracquetball strikes a wall with a speed of 30m/s and rebounds with a speed of26m/s The collision takes20milliseconds.What isthe average acceleration of theball during the collision?