A roof tile falls from rest from the top of a building. An observer inside the building notices that it takes 0.17 s for the tile to pass her window, which has a height of 1.26 m. How far above the top of this window is the roof?
Equation for moving along window is:
where u is speed when start passing the window. From it we get:
Knowing this speed we can find how far above the top of this window is the roof:
A roof tile falls from rest from the top of a building. An observer inside the...
A roof tile falls from rest from the top of a building. An observer inside the building notices that it takes 0.29 s for the tile to pass her window, which has a height of 1.3 m. How far above the top of this window is the roof?
A rock falls from rest from the top of a cliff. An observer notices that it takes 1.10 s to fall the final one-third of its distance. How high is the cliff?
A ball is dropped from rest from the top of a building. Two motion detectors which are positioned outside of two different windows, one above the other, record the velocities of -15.5 m/s and -17.2 m/s as the ball goes past them. (no air resistance) a. How far apart are the motion sensors mounted? b. How far from the top motion sensor is the top of the building where the ball was released? c. If the second motion sensor can...
A flowerpot falls off a windowsill and falls past the window below. You may ignore air resistance. It takes the pot 0.400 s to pass from the top to the bottom of this window, which is 2.00 m high. How far is the top of the window below the windowsill from which the flowerpot fell? Express your answer with the appropriate units.
A large building has an inclined roof. The length of the roof is 45.5 m and the angle of the roof is 20.0° below horizontal. A worker on the roof lets go of a hammer from the peak of the roof. Starting from rest, it slides down the entire length of the roof with a constant acceleration of 3.35 m/s2. After leaving the edge of the roof, it falls a vertical distance of 28.0 m before hitting the ground. (a)...
a ball falls down from the roof of a high building. a student observes that the time by the ball to travel last one fourth distance to be 0.45 s determine the height of the building
A cement block accidentally falls from rest from the ledge of a 68.2-m-high building. When the block is 18.8 m above the ground, a man, 1.80 m tall, looks up and notices that the block is directly above him. How much time, at most, does the man have to get out of the way?
A cement block accidentally falls from rest from the ledge of a 64.7-m-high building. When the block is 18.2 m above the ground, a man, 2.00 m tall, looks up and notices that the block is directly above him. How much time, at most, does the man have to get out of the way?
A cement block accidentally falls from rest from the ledge of a 53.4-m-high building. When the block is 14.2 m above the ground, a man, 1.91 m tall, looks up and notices that the block is directly above him. How much time, at most, does the man have to get out of the way?
A cement block accidentally falls from rest from the ledge of a 77.5-m-high building. When the block is 10.2 m above the ground, a man, 1.90 m tall, looks up and notices that the block is directly above him. How much time, at most, does the man have to get out of the way?