While standing on a bridge 18.1 m above the ground, you drop a stone from rest. When the stone has fallen 2.70 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same instant? Take the downward direction to be the negative direction.

While standing on a bridge 16.8 m above the ground, you drop a stone from rest. When the stone has fallen 2.80 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same instant ? Take the downward direction to be the negative direction.

A man drives a motorcycle off a horizontal roof to a neighboring rooftop to another building. The second roof is 6 meters lower and 10 meters away. Ignoring air resistance, how long is the motorcycle in the air? What is the minimum initial speed needed to reach the other building? What direction is the man's velocity point relative to the horizontal roof just before he lands? Assume initial speed found in earlier answer.

In a local bar, a customer slides an empty beer mug down the slippery counter for a refill. The bartender is momentarily distracted and does not see the mug, which slides off of the counter and strikes the floor 2.11 m from the base of the counter. If the height of the counter is 1.62 m high, what is the magnitude of the velocity of the mug as it left the counter? Your Answer: Answer

Please don't provide handwritten solution...   A rescue helicopter is hovering over a person whose boat has sunk. One of the rescuers throws a life preserver straight down to the victim with an initial velocity of 1.50 m/s and observes that it takes 2.3 s to reach the water. How high (in m) above the water was the preserver released? Note that the downdraft of the helicopter reduces the effects of air resistance on the falling life preserver, so that an acceleration equal to that of gravity is reasonable.   ____m

The initial speed of a ball thrown straight upward is 17.3 m/s, and then it is caught at the same distance above the ground. How high does the ball rise? How long does the ball remain in the air?

A juggler throws a bowling pin straight up with an initial speed of 9.6 m/s from an initial height of 1.3 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?

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?

In a local bar, a customer slides an empty beer mug down the counter for a refill. The height of the counter is 1.18 m. The mug slides off the counter and strikes the floor 0.20 m from the base of the counter. (a) With what velocity did the mug leave the counter? m/s (b) What was the direction of the mug's velocity just before it hit the floor? O (below the horizontal)