A baseball is thrown straight up into the air with an initial velocity of 8 m/s from a height of 0.8 m. How much time does it take the baseball to hit the ground again?

A rock is thrown straight upward with an initial speed of 3.2 m/s from a height of 1.4 m above the ground. When does it hit the ground?

A stone is thrown straight upward from the edge of the top of a building at an initial speed of 10 m/s. The height of the building is 40 m. How much later must a second stone be dropped from the rest at the same initial height so that the two stones hit the ground at the same time?

A tennis ball is thrown straight up into the air with an initial velocity of 5.3 m/s. How long does it take to reach the top of the trajectory?

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 brick falls from rest from the roof of a tall building. Two seconds later a ball is thrown vertically downward with a velocity 75 m/s at the brick. How far below the roof does the ball hit the brick?

A stone is thrown from the top of a building with an initial velocity of 20 m/s downward. The top of the building is 60 m above the ground. How much time elapses between the instant of release and the instant of impact with the ground? 1.0 s 3.5 s 6.1 s 1.6 s 2.0 s

A ball is projected upward at time t = 0.0 s, from a point on a roof 10 m above the ground. The ball rises, then falls and strikes the ground. The initial velocity of the ball is 58.5 m/s. Consider all quantities as positive in the upward direction. At time 1-5.97 s, the velocity of the ball is closest to: 12 m/s Ozero O-175 m/s O +12 m/s O +175 m/s

At the beginning of a basketball game, a referee tosses the ball straight up with a speed of 4.92 m/s. A player cannot touch the ball until after it reaches its maximum height and begins to fall down. What is the minimum time that a player must wait before touching the ball?

A stone is dropped into a river from a bridge 47.5 m above the water. Another stone is thrown vertically down 1.40 s after the first is dropped. Both stones strike the water at the same time. What is the initial speed of the second stone? Use g=9.80 m/s2.