A flower pot falls off a balcony. It takes 0.100 s to pass a window of height 1.25 m. From what height above the bottom of the window did it fall?
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A: Basic physics concept.
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- A pole vaulter is momentarily motionless as he clears the bar, which is set 4.2 m above the ground. He then falls onto a thick cushion. The top of the cushion is 80 cm above the ground, and it compresses by 50 cm as the pole vaulter comes to rest. What is his acceleration as he comes to rest on the cushion?A thoughtful person on a bridge reflecting on his awesome Physics class sees a small stone by his feet. Hmm, he thought to himself. Using his foot he slowly nudged the stone off the surface of the bridge and using his cell phone he timed how long it took to hit the water, about 1.75 s. How high (m) is the bridge above the water? (neglect air resistance)Bob drops a rock from the top of his apartment building. He noted that it hits the ground traveling at 35.0m/s. From what height above the ground (in m) did Bob release the rock?
- An apple falls from a tree 5.1 m above the ground. How long does it take to hit the groundA bullet leaves a gun with a muzzle speed of 350.0 m/s. The bullet is fired straight into the air, how long does it take for the bullet to fall back to the ground? Air resistance doesn't have an effect.How long does it take to hit the ground?
- The initial speed of a ball thrown straight upward is 17.3 m/s, and then it is caught at the same distance above the ground. How high does the ball rise? How long does the ball remain in the air?A basketball referee tosses the ball straight up for the starting tip-off. What is the minimum velocity that the basketball player must jump in order to rise 1.50 m above the floor and reach the ball?A skateboarder decides to try to jump from the top of a set of stairs and land at the bottom. She leaves the top of the stairs with a horizontal velocity of 15.0 m/s. If the top of the stairs is 2.0 m high, what will her horizontal displacement be?
- A worker at the top of a 425-m-tall television transmitting tower accidentally drops a heavy tool. If air resistance is negligible, how fast (in m/s) is the tool going just before it hits the ground?A rock is dropped off of a cliff. It takes 2.8s for the rock to reach the bottom. The acceleration due to gravity is 9.81 m/s2. How tall is the cliff?A car drives horizontally off of a 6.60 m tall cliff. The car lands 7.39 m from the base of the cliff. Assuming air resistance can be ignored, at what speed did the car leave the top of the cliff and at what speed is the car traveling just before striking the ground?