Answered: You drop an object from rest (initial…

Name: You drop an object from rest (initial velocity = 0) from a height of 6
Uploaded: 2024-03-20T06:57:47.000Z
Channel: Bartleby
Description: You drop an object from rest (initial velocity = 0) from a height of 6.8 metres. What is the final speed of the object as it hits the floor? (Speed is a magnitude and so must be a positive value). Assume the magnitude of the acceleration due to gra

Science

Physics

You drop an object from rest (initial velocity = 0) from a height of 6.8 metres. What is the final speed of the object as it hits the floor?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter3: Motion Along A Straight Line

Section: Chapter Questions

Problem 2CQ: Under what circumstances does distance traveled equal magnitude of displacement? What is the only...

See similar textbooks

Similar questions

Under what circumstances does distance traveled equal magnitude of displacement? What is the only case in which magnitude of displacement and displacement are exactly the same?
A rocket with a very particular movement moves vertically upwards. The acceleration of the rocket is given by ay (t) = B − Ct, where B = 39.23 m / s2 and C = 7.24 m / s3. At t = 0 s the rocket is at the origin and has an initial velocity of 23.15 m / s. How long does it take for the rocket to reach maximum height? give the answer in s
From the top of a cliff, a person throws a stone straight downward. The initial speed of the stone just after leaving the person's hand is 9.9 m/s. (a) What is the acceleration (magnitude and direction) of the stone while it moves downward, after leaving the person's hand? Also, is the stone's speed increasing or decreasing? (b) After 0.48 s, how far beneath the top of the cliff is the stone? (Give just the distance fallen, that is, a magnitude.)
In a certain coordinate system, the position of a particle is r= [(3m/s2) i]t2 - [(2m/s4) j] t4 where r is in meters and t is in seconds. a. Find its velocity and acceleration as a function of time. b. Find the magnitude of its velocity and acceleration at t= 2.5s.
A person hits a trampoline while moving downward with a speed of 9 m/s and rebounds a short time later with roughly the same speed upward. If the person is in contact with the trampoline for about 1.8 s, what are the magnitude and direction of the person’s average acceleration during this time interval? (Hint: You can ignore the effects due to gravity
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
A jet plane comes in for a landing with a speed of 100 m/s, and its acceleration can have a maximum magnitude of 5.00 m/s^2 as it comes to rest, from the instant the plane touches the runway, what is the minimum time interval needed before it can come to rest?
An object moving with uniform acceleration has a velocity of 11.0 cm/s in the positive x-direction when its x-coordinate is 3.06 cm. If its x-coordinate 2.15 s later is −5.00 cm, what is its acceleration? _____cm/s2 A ball is thrown directly downward with an initial speed of 7.45 m/s, from a height of 30.3 m. After what time interval does it strike the ground? _______s A small mailbag is released from a helicopter that is descending steadily at 2.78 m/s. (a) After 3.00 s, what is the speed of the mailbag? v = ______m/s (b) How far is it below the helicopter? d = ______m (c) What are your answers to parts (a) and (b) if the helicopter is rising steadily at 2.78 m/s? v=______m/s d=______m A model rocket is launched straight upward with an initial speed of 44.0 m/s. It accelerates with a constant upward acceleration of 1.00 m/s2 until its engines stop at an altitude of 200 m. (a) What can you say about the motion of the rocket after its engines stop? (b) What is the maximum height…
a car traveling at a constant speed of 30.0m / s as it passes a stationary police car. If the police car takes 1.00s to start, a) what must be the magnitude of the constant acceleration of the police car to intercept the car if the police travel a distance of 300m? and b) How long does the police take to reach the car?
An object has an acceleration defined by the equation a=5t+4 (m/s^2) where "t" is in seconds. The initial velocity of the object is -10 m/s and started at a position s = 40m. 1. What is the initial magnitude of the acceleration of the object? Express your answer in unit of m/s^2 2. What is the velocity of the object after 4s? Express your answer in unit of m/s. 3. What is the position of the object after 4s? Express your answer in unit of m.
An airplane has a velocity ofv=(5m/s)i+(4m/s)jatt1=3s. For the time interval from t1=3s to t2=13s the average acceleration is a=(.5m/s2)i+(.2m/s2)j. At 13s find the magnitude and direction of the velocity of the airplane.
A skateboarder travels on a horizontal surface with an initial velocity of 4.4 m/sm/s toward the south and a constant acceleration of 2.6 m/s2m/s2 toward the east. Let the xx direction be eastward and the yy direction be northward, and let the skateboarder be at the origin at t=0t=0. 1. What is her y position at t=0.90s? Express your answer to two significant figures and include appropriate units.