COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 2, Problem 9QAP
To determine
The advantages and disadvantages of an ad campaign presenting car model's acceleration in units of
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A skier starts from rest down a slope 500.0 m long. The skier accelerates at a constant rate of 2.00 m/s squared.
• a. Find the velocity of the skier at the bottom of the slope. Do this by deriving two separate equations for time and then making the expressions equal to each other to solve for the second velocity.
• b. Using the distance down the hill, and the two velocities, determine the time it took to descend the hill.
1. Which of the following velocity-time graphs best describes
the motion of an object (with the following descriptions
(Tipler & Mosca, 2008)
(b)
(a)
(c)
(d)
Time, s
Description
Corresponding v-t graph
(a) With constant positive
acceleration
(b) With positive acceleration
that is decreasing with
time.
(c) With positive acceleration
that is increasing with
time
(d) With no acceleration
Velocity, m/s
A walker sees a rock fall from the top of a steep cliff and notices that it takes 1.5 seconds for the rock
to fall the final third ( or 1/3) of the way.
• a) What is the height of the cliff in metres?
b) In part (a) you get two roots to a quadratic equation and use one of them for your answer.
What does the second root represent?
Chapter 2 Solutions
COLLEGE PHYSICS
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Ctrl ***F12 In - { [ ? 1 + = Insert } 1 + Home CA + A 69°F A D Delete Backspace PgUp S ►/11 Pun Y Enter 40) Num Lock 7 X 12:00 AM 5/2/2022 I Home Shift O D 4 53 8arrow_forwardTask V:As a technical engineer in the army, you are part of a team in charge of testing and commissioning a new tankrecently purchased by the artillery.Field testing has revealed the following information:1) The tank moves from rest to a speed of 50 ??/ℎ? in 100 seconds.2) Using the breaking system, the tank is brought to a complete stop from a speed of 50 ??/ℎ? in 5 seconds.3) The maximum speed achievable by the tank is 90 km/hr.You are required to address all the questions below providing all calculations, graphs, and explanations asappropriate to back your answers. 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