COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 2, Problem 7QAP
To determine
What happens to an object's velocity when the object's acceleration is in the opposite direction?
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Check out a sample textbook solutionStudents have asked these similar questions
EXAMPLE 34 The acceleration a of a particle
moving with an initial velocity u varies with distance x as
a=kVx wherek is a constant. The distance covered by the
particle when its velocity becomes 3u is given by
2 \2/3
3u?
(a)
k
(b) (3ku²)^3
4/3
2/3
2
2/3
(c)
k
(d)
0 amiT
3k
39. •What are the magnitude and direction of the change
in velocity if the initial velocity is 30 m/s south and the
final velocity is 40 m/s west?
44. ••Cody starts at a point 6 km to the east and 4 km
to the south of a location that represents the origin of
a coordinate system for a map. He ends up at a point
10 km to the west and 6 km to the north of the map
origin. (a) Find his average velocity if the trip took him
4 h to complete. (b) Cody walks to his destination at a
constant rate. His friend Marcus covers the distance with
a combination of jogging, walking, running, and resting
so that the total trip time is also 4 h. How do their aver-
age velocities compare?
Chapter 2 Solutions
COLLEGE PHYSICS
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