A car starts from rest and travels for 10.0 s with a uniform acceleration of +2.0 m/s². The driver then applies the brakes, causing a uniform acceleration of -1.5 m/s². If the brakes are applied for 1.0 s, determine each of the following.(a) How fast is the car going at the end of the braking period?\[ \_\_\_\_\_\_\_\_ \, \text{m/s} \](b) How far has the car gone?\[ \_\_\_\_\_\_\_\_ \, \text{m} \]\[ \text{Submit Answer} \]

Given that :a=2 m/s2t=10 sa'=-1.5 m/s2t'=1 swhere,a→ accelerationt→time of…

Answered: A car starts from rest and travels for…

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)...

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A car starts from rest, then accelerates at a constant rate over a distance of 66 m. It then immediately decelerates at a constant rate over a distance of 111 m. The entire trip lasts a total duration of 14.2 s. What were the magnitudes of the car s accelerations for the speedup and slowdown stages respectively? 7.82 m/s^2, then 4.65 m/s^2 4.71 m/s^2, then 2.80 m/s^2 4.65 m/s^2, then 7.82 m/s^2 1.76 m/s^2, then 1.76 m/s^2
A jogger accelerates from rest to 4.25 m/s in 2.15 s. A car accelerates from 21.9 to 41.9 m/s also in 2.15 s. (a) Find the magnitude of the acceleration of the jogger. (b) Determine the magnitude of the acceleration of the car. (c) How much further does the car travel than the jogger during the 2.15 s? (a) Number i (b) Number i (c) Number M. Units Units Units
A car is stopped at a traffic light. It then travels along a straight road so that its distance from the light is given by ?(?) = ??^2 − ??^3, where ? = 2.40 ?/?^2 and ? = 0.120 ?/?^3. a) Calculate the average velocity of the car for time interval ? = 0 to ? = 10.0?. b) Calculate the instantaneous velocity of the car at ? = 0, ? = 5.0?, and ? = 10.0?. c) How long after starting from rest is the car again at rest?
A car starts from rest and travels for 9.0 s with a uniform acceleration of +1.7 m/s2. The driver then applies the brakes, causing a uniform acceleration of -2.5 m/s2. If the brakes are applied for 2.0 s, determine each of the following. (a) How fast is the car going at the end of the braking period? m/s (b) How far has the car gone? m
A car is traveling at a speed of 30 m/s, a typical highway speed, on wet pavement. The driver sees an obstacle ahead and decides to stop. From this instant, it takes him 0.75 s to begin applying the brakes. Once the brakes are applied, the car experiences an acceleration of -6.0 m/s2. How far does the car travel from the instant the driver notices the obstacle until it stops?
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A certain elevator cab in a New York hotel has a total run of 160 m. Its maximum speed is 280 m/min. Its acceleration (both speeding up and slowing down) has a magnitude of 1.32 m/s2. (a) How far does the cab move while accelerating to full speed from rest?(b) How long does it take to make the nonstop 160 m run, starting and ending at rest?
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