A rock is dropped from a garage roof from rest. The roof is 6.0 from the ground. A second rock is projected straight upward from ground level at the moment the first rock was released. This second rock had an initial upward velocity of +6.0m/s. How long will this second rock take to

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

A projectile is launched in the horizontal direction. It travels 2.050m horizontally while it falls 0.450m vertically, and it then strikes the floor. How long is the projectile in the air? What was the original velocity of the projectile?

A rock is thrown from a cliff and lands 20.2 m from the base of the cliff, and it was thrown horizontally with a speed of 12.7 m/s. a.) How tall is the cliff?

A rocket is launched from the ground with the upward velocity of 140 m/s. There is no engine working on the rocket while is is flying up. What is the maximum height the rocket reaches?

Freya clears a crossbar while pole vaulting. She releases the pole before she achieves her peak height.  It takes her 2 seconds to fall from her peak height to the landing pit.  The landing pit is 1.5 m high.  How high above the ground was Freya at the peak height of her vault?

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?

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?

A ball is tossed up into the air. It takes the ball 6.2 seconds to return to the persons hands. What is the greatest height that the ball reached above the persons hand?