A rock is thrown vertically upward with a speed of 17.0 m/s from the roof of a building that is 70.0 m above the ground. Assume free fall. A) In how many seconds after being thrown does the rock strike the ground? B) What is the speed of the rock just before it strikes the ground?

While standing at the edge of the roof of a building, a man throws a stone upward with an initial speed of 5.89 m/s. The stone subsequently falls to the ground, which is 13.1 m below the point where the stone leaves his hand. At what speed does the stone impact the ground? Ignore air resistance and use g = 9.81 m/s2 for the acceleration due to gravity. impact speed: How much time is the stone in the air? elapsed time: m/s

A juggler throws a bowling pin straight up with an initial speed of 6 m/s from an initial height of 3.4 m. How much time elapses until the bowling pin returns to the same initial height?

A girl is standing at the edge of a cliff 100. m above the ground. She reaches out over the edge of the cliff and throws a rock straight upward with a speed 8.00 m/s. a) How long does it take the rock to hit the ground? b) What is the speed of the rock the instant before it hits the ground?

While standing at the edge of the roof of a building, a man throws a stone upward with an initial speed of 6.71 m/s. The stone subsequently falls to the ground, which is 16.7 m below the point where the stone leaves his hand. At what speed does the stone impact the ground? Ignore air resistance and use g = 9.81 m/s² for the acceleration due to gravity. impact speed: m/s How much time is the stone in the air? elapsed time: S

Some troublemaking kids are dropping water balloons from the roof of your apartment building. You are in your fifth-floor room and your window is 25 m above the sidewalk outside. You look outside and see that each balloon hits the pavement 1.5 s after passing your window. Express answers using 2 significant figures. a) How fast are the balloons traveling when they pass your window? b) Assuming the balloons are being released from rest, from what height above your window are they being released? c) If you threw a balloon upwards from your window with an initial speed of 6.5 m/s, would you be able to get it to the roof?

Mt. Asama, Japan, is an active volcano complex. In 2009, an eruption threw solid volcanic rocks that landed far from the crater. Suppose that one such rock was launched at an angle of θ = 57.6 degrees above horizontal, and landed a horizontal distance d = 880 m from the crater, and a vertical distance h = 940 m below the crater. a) what is the initial speed of the rock in m/s? b) how long in secs was the rock 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 ping pong ball rolls at a speed of 0.60 m/s toward the edge of a table which is 0.80 m high. The ball rolls off the table.  a) How long is the ball in the air?  b) How far out from the point directly below the edge of the tabletop does the ball hit the floor?

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?