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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I need help on these problems it doesn’t have to be all of them I would appreciate it.

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13. A car traveling south at a velocity of 30 m/sec slows down to a velocity of 10 m/sec in 10 sec. Calculate the
deceleration.
14. A car accelerates from 0 to 72 m/sec in 8 sec. What is the car's acceleration?
15. A spaceship is traveling at 20,000 m/sec. At t=5 sec, the rocket thrusters are turned on. At t=55 sec, the spaceship
reaches a speed of 24,000 m/sec. What is the space ship's acceleration?
16. A driver starts his parked car and within 5 sec reaches a velocity of 54 m/s as he travels east. What is his
acceleration?
17. Falling objects drop with an average acceleration of 9.8 m/sec/sec, or 9 8m/sec2. If an object falls from a tall
building, how long will it take before it reaches a speed of 49 m/sec?
18. A car traveling at 27 m/s loses control and crashes into a brick wall, coming to a stop in 0.9 seconds. What was the
donalarainn of tha aor?
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