PHYSICS FREE FALL

FREE FALL:

Cindy and Jim decide to go out for a little walk on to the George Washington Bridge. They both laugh and talk until they stumble upon two glowing rocks. Jim picks up the blue glowing rock and drops it over the bridge. It takes 3 seconds to reach the river below. Cindy takes the red glowing rock and throws it vertically. It takes this rock 2 seconds to hit the water. With what velocity was the red glowing rock thrown?

Round of your answer to 2 decimal place. Type your whole answer including the unit.

Meanwhile, an owl flies upward right above Jim, who is unconscious. When the bird (travelling with a velocity of 5 m/s) is 10m away from Jim, it releases a small branch that it is carrying. The branch lands right next to Jim. How fast will the branch be traveling right before it hits the ground?

Round of your answer to 2 decimal place. Type your whole answer including the unit.

Meanwhile, an owl flies upward right above Jim, who is unconscious. When the bird (travelling with a velocity of 5 m/s) is 10m away from Jim, it releases a small branch that it is carrying. The branch lands right next to Jim. What is the max height that the branch reaches while in the air?

Round of your answer to 2 decimal place. Type your whole answer including the unit.

To determine the height of a building, Jessica throws a ball straight up. She sees that the ball reaches the top of the building after 0.5s. The ball continues travelling upward before falling back down again. As it falls, it reaches the top of the building the second time after a total elapsed time of 4.1 seconds. How high is the building (ignore Jessica’s height)?

Round of your answer to 2 decimal place. Type your whole answer including the unit.