Att = 0 , a stone is dropped from the top of a cliff above a lake. Another stone is thrown downward 1.6 s later from the same point with an initial speed of 32 m/s . Both stones hit the water at the same instant. Find the height of the cliff.

Att = 0 , a stone is dropped from the top of a cliff above a lake. Another stone is thrown downward 1.6 s later from the same point with an initial speed of 32 m/s . Both stones hit the water at the same instant. Find the height of the cliff.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 53P: A model rocket is launched straight upward with an initial speed of 50.0 m/s. It accelerates with a...

See similar textbooks

Similar questions

A model rocket is launched straight upward with an initial speed of 50.0 m/s. It accelerates with a constant upward acceleration of 2.00 m/s2 until its engines stop at an altitude of 150. m. (a) What can you say about, the motion of the rocket alter its engines stop? (b) What is the maximum height reached by the rocket? (c) How long after liftoff does the rocket reach its maximum height? (d) How long is the rocket in the air?
A golfer wants to put the ball into the final hole which lies 7.0 m away from the ball and up a slight hill. Because of the incline while the ball moves up this hill will experience a constant deceleration of 1.8 m/s^2. Which initial velocity should the golfer give the ball if they want to make it go precisely into the hole? Please answer in m/s
An automobile travels on a straight road for 37 km at 45 km/h. It then continues in the same direction for another 37 km at 90 km/h. (a) What is the average velocity of the car during this 74 km trip? (Assume that it moves in the positive x direction.) (b) What is the average speed?
You throw a stone vertically upward with an initial speed of 6.0m/s from a third-story office window. If the window is 12m above the ground, find (a) the time the stone is in flight (b)the speed of the stone just before it hits the ground
The bacterium Escherichia coli (or E. coli) is a single-celled organism that lives in the gut of healthy humans and animals. When grown in a uniform medium rich in salts and amino acids, these bacteria swim along zig-zag paths at a constant speed of 20 μm/s. Figure shows the trajectory of an E. coli as it moves from point A to point E. Each segment of the motion can be identified by two letters, such as segment BC. a. For each of the four segments in the bacterium’s trajectory, calculate the x- and y-components of its displacement and of its velocity.b. Calculate both the total distance traveled and the magnitude of the net displacement for the entire motion.c. What are the magnitude and the direction of the bacterium’s average velocity for the entire trip?
A rock is shot vertically upward from the edge of the top of a tall building.The rock reaches its maximum height above the top of the building 1.70 s after being shot. Then, after barely missing the edge of the building as it falls downward, the rock strikes the ground 8.00 s after it is launched. In SI units: (a) with what upward velocity is the rock shot, (b) what maximum height above the top of the building is reached by the rock, and (c) how tall is the building?
A wild horse starts from rest and runs in a straight line 29° north of west. After 33 s of running in this direction, the horse has a speed of 15 m/s.(a) What is the magnitude of the horse's average acceleration? m/s2(b) Assuming that north and east are the positive directions, find the component of the horse's acceleration that points along the north-south line. m/s2(c) Find the component of the horse's acceleration that points along the east-west line. m/s2
You throw a ball vertically upward, and as it leaves your hand, its speed is 34.0 m/s. (a) How high (in m) does it rise above the level where it leaves your hand? m (b) How long (in s) does it take to reach its highest point? s (c) How long (in s) does the ball take to return to the level where it left your hand after it reaches its highest point? s (d) Assume that the upward direction is positive and the downward direction is negative. What is the ball's velocity (in m/s) when it returns to the level where it left your hand? (Indicate the direction with the sign of your answer.) m/s
A ball is dropped from a building has travelled 65.8 m during the last second of fall. a. How high is the building? b. How long will it take the ball to reach the ground? c. What is the velocity just before it reaches the ground? (Use the kinematic equation to solve the required data)
Erica throws a lawn dart upward from a height of 1 meter above the ground. The lawn dart reaches a maximum height of 40 m. a) Find the initial velocity of the lawn dart (Answer: 27.6?̂ ? ? ) b) How long after launch does the lawn dart reach its maximum height? (Answer: 2.82 s) c) How long after launch does the lawn dart hit the ground? (Answer: 5.68 ?) d) What is the impact velocity of the lawn dart? (Answer: −28?̂ ? ? ) e) Plot the acceleration vs time and velocity vs time
A hot air balloon is descending at a speed of 3.96 m/s when a passenger accidently drops his camera from rest. The camera is 45.3 m above the ground when it's dropped. Neglect air resistance and take downwards as the positive direction for position and velocity. (a) How long does it take the camera to reach the ground? (answer: 2.66 s) (b) What is the camera's velocity at the moment it hits the ground? (answer: + 30.1 m/s)
T2 11.) A ball is thrown off the topof a 30m cliff with horizontal velocity of 10 m/s. How far from the base of the cliff does the ball land? Express your answer in meters. Explain your answer. ________________________ m