1. A stone is dropped from the top of a cliff. It is seen to hit the ground below after 4.5 seconds. Howhigh is the cliff?2. A ball is thrown vertically downward with a velocity of 20 m/s from the roof of a building that is 25 mhigh.How long does it take to hit the ground below?b. How fast was the ball going when it hit the ground?3. A coin is tossed vertically upward and reaches a maximum height of 1.5 meters before it comes backdown.What was its initial velocity?b. How long was it in the air?a.4. A car rolls gently off a vertical cliff with an initial velocity of 0 m/s. How long does it take for the car toreach a speed of 75 km/hr?5. The best rebounders in basketball have a vertical leap of about 125 cm.a. What is their initial launch speed off of the ground?b. How long are they in the air?6. King Kong climbed the Bank of America Plaza in Atlanta which has a height of 312 m.a. How long did it take for him to fall?b. What was his velocity just before hitting the ground?7. A mischievous GHS student is standing on the bus ramp with his girlfriend. He really likes her andgrabs her purse and throws it on top of the bus ramp covering. He throws her purse with an initialupward velocity of 15 m/s. The roof of the covering is 15.0 m high. How long was the purse in flight?8. A ball player catches a ball 3.5 seconds after tossing it upwards.а.What was the speed at which he threw the ball?b. What was the maximum height of the ball?9. During a tornado in 2008, the Peachtree Plaza Westin Hotel in downtown Atlanta suffered majordamage. A piece of glass dropped from the top of the hotel falling a distance of 215 m.a. How long would it take for the piece of glass to hit the ground?b. What is the velocity of the glass when it strikes the ground?10. Wil-E Coyote drops a bowling ball off a cliff to try to catch the Roadrunner. (Meep! Meep!!) The cliff is145 m high.How long does it take for the ball to fall to the ground?b. What is its FINAL velocity?а.What is its displacement in the first 3.0 seconds?What is the velocity of the ball at the end of 3.0 se conds?С.d.

Given Stone thrown from the cliff and it hit the ground after 4.5 sec To find out Height of the…

Answered: 1. A stone is dropped from the top of a…

1. A stone is dropped from the top of a cliff. It is seen to hit the ground below after 4.5 seconds. How high is the cliff? 2. A balI is thrown from the roof of a building that is 25 m

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter2: Kinematics

Section: Chapter Questions

Problem 36PE: An express train passes through a station. It enters with an initial velocity of 22.0 m/s and...

See similar textbooks

Similar questions

A swan on a lake gets airborne by flapping its wings and running on top of the water. (a) If the swan must reach a velocity of 6.00 m/s2, to take off and it accelerates from rest at an average rate of 0.350 m/s2, how far will it travel before becoming airborne? (b) How long does this take?
A commuter backs her car out of her garage with an acceleration of 1.40 m/s2. (a) How long does it take her to reach a speed of 2.00 m/s? (b) If she then brakes to a stop in 0.800 s, what is her deceleration?
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 is 210 m long. (a) How long is the nose of the train in the station? (b) How fast is it going when the nose leaves the station? (c) If the train is 130 m long, when does the end of the train leave the station? (d) What is the velocity of the end of the train as it leaves?
A person takes a trip, driving with a constant speed of 89.5 km/h, except for a 22.0-min rest stop. If the persons average speed is 77.8 km/h, (a) how much time is spent on the trip and (b) how far does the person travel?
Standing at the base of one of the cliffs of Mt. Arapiles in Victoria, Australia, a hiker hears a rock break loose from a height of 105 m. He can't see the rock right away but then does, 1.50 s later. (a) How far above the hiker is the rock when he can see it? (b) How much time does he have to move before the rock hits his head?
At the end of a race, a runner decelerates from a velocity of 9.00 m/s at a rate of 2.00 m/s2. (a) How far does she travel in the next 5.00 s? (b) What is her final velocity? (c) Evaluate the result. Does it make sense?
Hannah tests her new sports car by racing with Sam, an experienced racer. Both start from rest, but Hannah leaves the starting line 1.00 s after Sam does. Sam moves with a constant acceleration of 3.50 m/s2, while Hannah maintains an acceleration of 4.90 m/s2. Find (a) the time at which Hannah overtakes Sam, (b) the distance she travels before she catches him, and (c) the speeds of both cars at the instant Hannah overtakes Sam.
A student writes, "A bird that is diving for prey has a speed of -10 m / s." What is wrong with the student's statement? What has the student actually described? Explain.
1.) A plane flies the distance between two cities in 2 hour and 45 minutes with a velocity of 800km/h. Another plane covers that distance with 950 km/h. What is the flight time of the second plane? ( in minutes)
1).A car accelerates from rest until it is traveling at 88km/hr. The time to keep up to speed is 6.2 sec. What is the acceleration of the car in m/s2 ? How far t=did the car travel in 6.2 secs in meters? 2). A rock is dropped from rest and free falss at 10m/s. How fast will the rock be moving right before it hits the ground it it falls 3.3m? HOw long dies it take for the rock to fall 3.3m? 3). A rock is thrown upwar and reached a height of 12m. How fast was the rock thrown? How long does it take for the rock to reach its max height? 4) A family road trip starts out in a van travelling 50km at a velocity of 75km/ hr followed by a spot of slow traffic where they travel 10km at a velocity of 25km/hr. What is the average velocity during the trip km/hr? 5) A car moves with velocity of 60km/hr for 45 min. The driver takes a 15min break at a gas station before travelling at 70kmm/hr for 30min. What was the average velocity of the car over the total trip in km/hr?
15. A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with a velocity of 5.00 m/s, and her takeoff point is 1.20 m above the pool. (a) How long (in s) are her feet in the air? _____ s (b) What is her highest point (in m) above the board? _____ m (c) What is her velocity (in m/s) when her feet hit the water? _____ m/s
2. A motorist saw a humps 33 m away at a speed of 14.5 m/s. He immediately slams on the brake and decelerates 1.2 m/s 2 with a speed of 11.7 m/s. (a) Will he stop before the humps (express your answer in magnitude)? (b) How long it will take before stopping?