A car starts from rest and accelerates uniformly for tseconds to a speed v m/s. It maintains this speed for10 seconds and then comes to rest with a uniformretardation of 2 m/s2.Given that the total time of motion is 22 secondsand that the total distance moved is 160m find thevalue of t and of v.

Answered: Image /qna-images/answer/3c2fe7ac-7ac8-4dc6-9103-f616c1709ba3.jpg

Answered: A car starts from rest and accelerates…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

A ball is thrown so that its initial vertical and horizontal components of velocity are 50 m/s and 25 m/s, respectively. Estimate the maximum height the ball reaches. (Use 10 m/s2 as the acceleration of gravity.)
A Lamborghini Aventador SVJ, traveling at a constant speed of 280 ms-1 passes a police car at rest on the High 95, highway in south Florida. The policeman starts to move at the moment the speeder passes his car and accelerates at a constant rate of 15.0 ms-2 until he pulls even with the speeding Lamborghini. Find: (i) The time and the final velocity required for the police car to catch the speeding car. (ii) The distance travelled during the chase.
A cart is travelling over an xy plane with acceleration components ax = 4.0 m/s^2 and ay=-2.0 m/s^2. if the initial velocity along x is 8.0 m/s and along y is 12 m/s. find, the velocity after 3.5 seconds (give in terms of the components along x and y)
A cruise ship can accelerate at 0.01 m/s^2, if it starts from rest how long does it take to reach a speed of 25 km/h? How long would it take if it started from a spread of 2.0 m/s?
The brakes on your car can slow you at a rate of 5.2 m/s2. (a) If you are going 137 km/h and suddenly see a state trooper, what is the minimum time in which you can get your car under the 90 km/h speed limit? (The answer reveals the futility of braking to keep your high speed from being detected with a radar or laser gun.) (b) Graph x versus t and v versus t for such a slowing.
A particle is initially at rest at the origin at t = 0.00 s. From t = 0.00 s to t = 5.00 s its velocity changes according to v(t) = (3.20 m/s2)t. From t = 5.00s to t = 11.00s its velocity changes according to v(t) = (16.00 m/s) - (1.50 m/s2)(t - 5.00 s). From t = 11.00 s to t = 20.00 s its velocity does not change. What is the position of the particle at t = 16.54?
A bus driver heads south with a steady speed of v, = 22.0 m/s for t, = 3.00 min, then makes a right turn and travels at v, = 25.0 m/s for t, = 3.00 min, and then drives northwest at v, = 30.0 m/s for t, = 1.00 min. For this 7.00-min trip, calculate the following. Assume +x is in the eastward direction. (a) total vector displacement (Enter the magnitude in m and the direction in degrees south of west.) magnitude m direction o south of west (b) average speed (in m/s) m/s (c) average velocity (Enter the magnitude in m/s and the direction in degrees south of west.) magnitude m/s direction o south of west
At time t = 0 seconds, a 1/4 lb ball is projected vertically upwards with velocity 12 ft/sec, from the top of a box that is 4 ft high. (i) Find the velocity of the ball at time t > 0. (ii) Find the position of the ball at time t > 0. (iii) When does the ball arrive at the bottom of the box and how fast is it going at that time?
A 200-kg box slides down a frictionless plane that is angled at 20 degrees with respect to the horizontal. Compute for its acceleration in units of m/s2.
A bus driver heads south with a steady speed of v, = 22.0 m/s for t, = 3.00 min, then makes a right turn and travels at v, = 25.0 m/s for t, = 2.40 min, and then drives northwest at v, = 30.0 m/s for tz = 1.00 min. For this 6.40-min trip, calculate the following. Assume +x is in the eastward direction. (a) total vector displacement (Enter the magnitude in m and the direction in degrees south of west.) magnitude m direction o south of west (b) average speed (in m/s) m/s (c) average velocity (Enter the magnitude in m/s and the direction in degrees south of west.) magnitude m/s direction o south of west
An over the shoulder can greatly increase your chance of surviving an overwise fatal car crah, especially if in this crash you experience an acceleration of no more than 30 "g's" (1 g = 9.8 m/s^2). We can call this the maximum rated acceleration. question A: What is the maximum rated acceleration? Please answer in m/s^2 ?? Question B: A car is travelling at 95 km/hr when it is in a head on collision. The car's front end is crushed, bringing it to a stop after undergoing the maximum rated acceleration. Calulate the distance that the front end of the car moves as it is caved in. Please answer in m Please answer both question A and B
The elevator in the new Engineering building moves from the ground to the top floor which is 28 meters. If the elevator can accelerate at 2.42 m/s2, decelerate at 1.21 m/s2, and reach a certain maximum speed. Calculate the height that the elevator must travel from rest (on the ground floor) before it decelerates to end up at rest on the top floor?

SEE MORE QUESTIONS

Recommended textbooks for you

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics (14th Edition)

Physics

ISBN:

9780133969290

Author:

Hugh D. Young, Roger A. Freedman

Publisher:

PEARSON

Introduction To Quantum Mechanics

Physics

ISBN:

9781107189638

Author:

Griffiths, David J., Schroeter, Darrell F.

Publisher:

Cambridge University Press

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics (14th Edition)

Physics

ISBN:

9780133969290

Author:

Hugh D. Young, Roger A. Freedman

Publisher:

PEARSON

Introduction To Quantum Mechanics

Physics

ISBN:

9781107189638

Author:

Griffiths, David J., Schroeter, Darrell F.

Publisher:

Cambridge University Press

Physics for Scientists and Engineers

Physics

ISBN:

9781337553278

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

Lecture- Tutorials for Introductory Astronomy

Physics

ISBN:

9780321820464

Author:

Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden

Publisher:

Addison-Wesley

College Physics: A Strategic Approach (4th Editio…

Physics

ISBN:

9780134609034

Author:

Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field

Publisher:

PEARSON

SEE MORE TEXTBOOKS