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?
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- A tennis ball is thrown straight up into the air with an initial velocity of 16.0 m/s. How high does the tennis ball travel?A rock is fired straight downward from the roof of a tall building using a slingshot. If the rock leaves the slingshot with a downward velocity of 11.2 m/s, and reaches the ground with a downward velocity of 34.7 m/s, how tall is the building? How long is the rock in the air, in seconds?A diver runs off a platform with an initial horizontal velocity of 1.16 m/s in the positive x-direction. The platform is at a vertical height of 8.90 m above the water. How much time is the diver in the air before he strikes the water? O 1.77 s O 1.83 s O 3.21 s O 2.49 s O 1.35 s O 2.99 s
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- 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/sAt 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.