College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 7P
|| A particle starts from rest at the origin with an acceleration vector that has magnitude 4 m/s2 and direction 30° above the positive x axis. (a) What are the components of its velocity vector 20 s later? (b) What is the particle s position at that time?
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a) Bx = -2 & By = 2
b) 2.83, 135 degree counter clockwise
How do you get these values?
|| For the three vectors shown in
Figure P3.53, the vector sum D =
Ả + B + Č has components Dx = 2
and D, =0.
a. What are the x- and y-components
of vector B?
b. Write B as a magnitude and a
2
direction.
FIGURE P3.53
The position of a particle is given by r(f) = Acos(wt)i + Asin(wt)j + ctk, where A is a
constant with units of meters, w is a constant with units of rad/s. and c is a constant with
units of m/s.
What is the velocity vector?|
What is the acceleration vector?
Chapter 3 Solutions
College Physics (10th Edition)
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