QUESTION A juggler throws a bowling pin straight up with an initial speed of 4.8 m/s from an initial height of 3.8 m. How much time elapses until the bowling pin returns to the same initial height?

A ball is thrown upward from roof top, 90 m above the ground. The ball rises, then falls and hits the ground. Ignore air resistance. a) What is the initial velocity of the ball, if it takes the ball 9.4 s to hit the ground? b) What is the maximum height reached by the ball?

2 identical pellet guns are fired simultaneously from the edge of a cliff. These guns impart an initial speed of 27.0m/s to each pellet. Gun A is fired straight upward, with the pellet going up and then falling back down, eventually hitting the ground beneath the cliff. Gun B is fired straight downward. In the absence of air resistance, how long after pellet B hits the ground does pellet A hit the ground?

A lead ball is dropped into a lake from a diving board 6.20 m above the water. After entering the water, it sinks to the bottom with a constant velocity equal to the velocity with which it hit the water. The ball reaches the bottom 4.80 s after it is released. How deep is the lake?

A hot-air balloon is rising straight up with a speed of 4.26 m/s. A ballast bag is released from rest relative to the balloon when it is 6.37 m above the ground. How much time elapses before the ballast bag hits the ground?

A zombie is playing catch with his zombie friend's head. It throws up in the air with an inital velocity of 26.2 m/s. How long until the zombie head reaches the maximum height? how far?

A rocket is launched and travels straight up. Its elevation is 2730 m with an upward velocity of 369 m/s when the rocket's engine shuts off. a)How long from the time the engine shuts off does the rocket take to hit the ground? b)What is the maximum height of the rocket above the ground?