You throw a ball straight up from a roof of a building. The ball leaves your hand at a point even with the roof railing with an upward speed of 15m/s. The ball is then in free fall. On its way back down, it just misses the railing After 6.0s from release, the ball then hits the ground. What is the height o the building? O 88.7m 99.2m 164.9m O 176.4m

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More people end up in U.S. emergency rooms because of fall-related injuries than from any other cause. At what speed v would someone hit the ground who accidentally steps off the top rung of a 4.0 m tall stepladder?   a. 8.9 m/s   b. 7.1 m/s   c. 6.2 m/s   d. 8.0 m/s   e. 9.8 m/s A spring gun launches a heavy steel marble with an initial speed of 19.6 m/s. How long will the steel marble be in the air?     a. 6.0 s   b. 2.0 s   c. 3.0 s   d. 5.0 s   e. 4.0 s A car is traveling in a straight line along a straight, level road at 15.0 m/s when it uniformly accelerates at 3.00 m/s2 for a time of 6.00 s. How far does the car travel in this time?     a. 90 m   b. 54 m   c. 126 m   d. 162 m   e. 144 m

Cuban tree frogs are skilled jumpers. They can launch themselves at 4.5 meters per second at an angle of 26o above horizontal. Assuming the frog is jumping on level ground, what is the maximum height above the ground that the frog will achieve?   0.95 m   1.2 m   0.20 m   0.61 m

tesponse A ball of mass 5 kg is thrown horizontally from top of a 30 m cliff as shown. It takes 4 seconds to reach the ground a distance of 100 m from the bottom of the cliff. What is the x components of the initial velocity? 30 m 100 m 25 m/s O 20 m/s O 35 m/s O 10 m/s A O 10) O O O

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 bug flies east at 2.5 m/s. A light breeze blows on the bug with a velocity of 2.5 m/s due east. What is the resultant velocity of the bug? O 5 m/s, east O 5 m/s, west O 2.5 m/s, east O 0 m/s

You're helping a friend move in to their apartment on the second floor, and decide it makes more sense to throw a box straight up from the ground to the open window in the apartment, 5.00 m above the ground. Your friend leans out the window and catches the box while it's moving upward at 2.40 m/s. What is the speed of the box as it left your hand?

A rock is kicked with an initial horizontal velocity of 10.0 m/s in the positive x direction from the top of a cliff of height H. What is the height H of the cliff from the ground? 10 m/s 55 m O 155 m O 120 m O 180 m O 77.0 m O 148 m O 98.9 m