Throughout liftoff a hot-air balloon accelerates upward at, Ask an Expert

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Q1. Volleyball is spiked so that it has an initial velocity of 18.9 m/s directed downward at an angle of 48.40 ° below horizontal. What is the horizontal component of the ball's velocity when the opposing player fields the ball?

Q2. Throughout liftoff, a hot-air balloon accelerates upward at a rate of 3m/s^2. The balloonist drops an object over the side of the gondola when the speed is 13m/s.

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