COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 2, Problem 80QAP
To determine
The average speed Kharissia must maintain for the remainder of the race in order to attain her goal.
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2.6 .• A Honda Civic travels in a straight line along a road. Its
distance x from a stop sign is given as a function of time t by the
equation x(t) = at? – Bt, where a =
0.0500 m/s. Calculate the average velocity of the car for each
time interval: (a) t = 0 to t = 2.00 s; (b) t = 0 to t = 4.00 s;
(c) t = 2.00 s to t = 4.00 s.
1.50 m/s? and ß
%3D
Find the final speed (in m/s) of the skier starting from rest.
Part (b) How long (in s) does it take for the skier to reach the bottom of this hill starting from rest?
•Part (c) Find the final speed (in m/s) of the skier starting with a speed of 2.50 m/s.
Part (d) How long (in s) does it take for the skier to reach the bottom of this hill with a starting speed of 2.50 m/s?
Can an object be increasing in speed as its acceleration decreases? If so, give an example. If not, explain.
Chapter 2 Solutions
COLLEGE PHYSICS
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