A ball is thrown straight down at 1.30 m/s and hits the ground 1.19 seconds later. How many meters did the ball travel before hitting the ground?
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- Nerve impulses in a human body travel at a speed of about 100 m/s. Suppose a person accidentally steps barefoot on a pebble. About how much time does it take the nerve impulse to travel from the foot to the brain (in s)? Assume the person is 1.60 m tall and the nerve impulse travels at uniform speed.A ball is hit straight up with an initial speed of 28 m/s. What is the speed of the ball 2.2 seconds after it is hit?Solve the problem. A rocket is propelled upward from a height of 112 feet at an initial velocity of 96 ft./s period after how many seconds does the rocket hit the ground?
- A rock is fired straight downward from the roof of a tall building using a slingshot. If the rock leaves the slingshot with a downward velocity of 11.2 m/s, and reaches the ground with a downward velocity of 34.7 m/s, how tall is the building? How long is the rock in the air, in seconds?Sarah is standing when she sees a boy running towards her with constant velocity 6.0 m/s. When they are 200 m apart, Sarah starts running to meet him. She runs with a constant acceleration, and by the time they meet, Sarah is running at 7.0 m/s. How long, from the time Sarah begins moving, does it take for them to meet?A bowling ball traveling with constant speed hits the pins at the end of a bowling lane 16.5 m long. The bowler hears the sound of the ball hitting the pins 2.61 s after the ball is released from his hands. What is the speed of the ball (in m/s), assuming the speed of sound is 340m/s?
- An express train passes through a station. It enters with an initial velocity of 22.0 m/s and decelerates at a rate of 0.150 m/s² as it goes through. The station in 210.0 m long. How fast is it going when the nose leaves the station?A ball is released from a crane, and hits the ground with a velocity of 17.8 m/s. How high up was the ball when it was released, and how much time did it take for it to hit the ground?A lemon is launched upwards at 28.0 m/s. It goes up, and on the way down it strikes the top of a 35.2 m tall light tower. With what velocity does it strike the light tower? What is its displacement 4.15 seconds after it is launched?
- A juggler throws a bowling pin straight up with an initial speed of 8.2 m/s. How much time elapses until the bowling pin returns to the juggler's hand? 0.84 s 1.68 s O 1.2 s O 2.4 sA police car gets passed by a car traveling at a constant speed of 150.0 km/hr. The police car accelerates from rest at 5.00 m/s2, the moment the two cars are side by side. How long does it take the police officer to catch the car?A brick falls from rest from the roof of a tall building. Two seconds later a ball is thrown vertically downward with a velocity 75 m/s at the brick. How far below the roof does the ball hit the brick?