COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 3, Problem 59QAP
To determine
(a)
The magnitude of the acceleration
To determine
(b)
The acceleration of the car
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Q1) Correct the following sentences
1- When an object moves in a circular path with a constant or variable speed, then it can
be said that the object has uniform circular motion.
2- A freely falling object is any object moving freely under the influence of gravity alone,
which is depend upon the initial motion of the object.
3- When a particle travels between two points, its displacement is dependent of the path
taken between the two points, while its distance is always denoted by vector.
4- Unit vectors are used to specify a direction and have a dimension vector in addition to
be used with other physical significance.
5- The speed has no direction and is always expressed as a positive or negative number.
Q2)
A basketball player who is 2.00 m tall is standing on the floor 10.0 m from the basket, as in
Figure. If he shoots the ball at a 40.0° angle with the horizontal, at what (a) initial speed
must he throw so that it goes through the hoop without striking the backboard? The basket…
If a body moves with a uniform speed in a circular motion, then______.
A) its acceleration is increasing
B) its acceleration is zero
C) its velocity is changing
D) its velocity is uniform
The following table lists data for the speed and radius of three examples of uniform circular motion. Find the magnitude of the
centripetal acceleration for each example.
Example 1
Example 2
Example 3
Radius
0.68m
Infinitely large
1.9m
(a) Example 1: a = Number i
(b) Example 2: ac = Number i
(c) Example 3: ac = Number i
Speed
14m/s
43m/s
3.7 m/s
Units
Units
Units
<
<
<
Chapter 3 Solutions
COLLEGE PHYSICS
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