An object is thrown upward from a height of 45.0m above ground, with the speed of 12.0 m/s. a) How high the object rise? b) How long will it take the object reach the ground? c) What is the object’s velocity upon hitting the ground? d) Where is the object and what is its velocity 2.5 s after it was thrown?

An object is thrown upward from a height of 45.0m above ground, with the speed of 12.0 m/s. a) How high the object rise? b) How long will it take the object reach the ground? c) What is the object’s velocity upon hitting the ground? d) Where is the object and what is its velocity 2.5 s after it was thrown?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter2: Kinematics

Section: Chapter Questions

Problem 22CQ: Suppose you throw a rock nearly straight up at a coconut in a palm tree, and the rock misses on the...

See similar textbooks

Similar questions

A ball starts from rest and accelerates at 0.5(H) m/s2 while moving down an inclined plane 9.00 m long. When it reaches the bottom, the ball rolls up another plane, where it comes to rest after moving 15.0 m on that plane. (a) What is the speed of the ball at the bottom of the first plane? (b) During what lime interval does the ball roll down the first plane? (c) What is the acceleration along the second plane? (d) What is the balls speed 8.00 m along the second plane?
(a) Calculate the height of a cliff if it takes 2.35 s for a rock to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8.00 m/s. (b) How long would it take to reach the ground if it is thrown straight down with the same speed?
Suppose you throw a rock nearly straight up at a coconut in a palm tree, and the rock misses on the way up but hits the coconut on the way down. Neglecting air resistance, how does the speed of the rock when it hits the coconut on the way down compare with what it would have been if it had hit the coconut on the way up? Is it more likely to dislodge the coconut on the way up or down? Explain,
A man drops a rock into a well, (a) The man hears the sound of the splash 2.40 s after he releases the rock from rest. The speed of sound in air (at the ambient temperature) is 336 m/s. How far below the top of the well is the surface of the water? (b) What If? II the travel time for the sound is ignored, what percentage error is introduced when the depth of the well is calculated?
A girl is standing at the edge of a cliff 100. m above the ground. She reaches out over the edge of the cliff and throws a rock straight upward with a speed 8.00 m/s. a) How long does it take the rock to hit the ground? b) What is the speed of the rock the instant before it hits the ground? Please type answer
A ball starts from rest and accelerates at 0.5 m/s² while moving down on a 9 m long inclined plane. 10) When the ball reaches the bottom of this plane, it continues moving with constant velocity along 12 m long horizontal path. Then, it moves up the second inclined surface for 10s and it stops. a) What is the speed of the ball at the bottom of the first inclined plane? b) How long does it take for the ball to reach the bottom of the second inclined plane? c) What is the acceleration in the second inclined plane? d) What is the speed of the ball at the point 8 m away from the bottom of the second inclined plane? Answers: a) v = 3 m/s, b) t = 10 s, c) a = -0.3 m/s² (parallel to that surface and in the downward direction), d) v =2.05 m/s
A ball starts from rest and accelerates at 0.500 m/s2 while moving down an inclined plane 9.00m long. When it reaches the bottom. The ball rolls up another plane, where, after moving 15.0m, it comes to rest. a) What is the speed of the ball at the bottom of the first plane? b) How long does it take to roll down the first plane? c) What is the acceleration along the second plane? d) What is the ball’s speed 8.00m along the second plane?
A girl is standing at the edge of a cliff 100. m above the ground. She reaches out over the edge of the cliff and throws a rock straight upward with a speed 8.00 m/s. a) How long does it take the rock to hit the ground? b) What is the speed of the rock the instant before it hits the ground?
A student throws a water balloon vertically downward from the top of the building. The balloon leaves the thrower’s hand with a speed of 6.0m/s. Air resistance may be ignored so the water balloon is in free fall after it leaves the thrower’s hand. a) What is it’s speed after falling 2.0s? b) How far does it fall in 2s? c) What is the magnitude of it’s velocity after falling 10m?
You toss a volleyball at 10 m/s straight upward. a) Draw a sketch of the scenario. b) How long will it take to reach zero speed at the top of its path? c) How long will it take to return to its starting point. d) How fast will it be going when it returns to its starting point.
A girl flips a coin into a 50 m deep wishing well. If she flips the coin upwards with an initial velocity of 5 m/s:a) How high does the coin rise?b) How long does it take to get to this point?c) How long does it take for the coin to reach the bottom of the well?d) What is the velocity when the coin hits the bottom of the well?
A stone is thrown upward with a velocity of 12.50m/s from a bridge that is 55.6m high. a) What is the highest height attained by the stone? b) At what time the stone hits the water below? c) With what velocity the stone hits the water? Choose an origin appropriately.