COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 3, Problem 45QAP
To determine
(a)
Cody's average velocity for the trip.
To determine
(b)
How Marcus' average velocity compares with Cody's average velocity.
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Students have asked these similar questions
tourist throws a rock horizontally off the edge
of a high cliff, with an initial velocity of lo m.s!
a) Taking the y-axis to be upward, write equa-
tions for the x- and y. coordinates as functions
of time.
b) Calculate the values of x and y at times
t=0, 0.5, 1.0, 1.5 and 2.0 S
c) Write equations for the x and y components
of the rock's velocity.
d) Find the magnitude and direction of the
velocity at time to los. Is the velocity tangent
to the trajectory?
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3. An object undergoes motion in 2 dimensions under a constant acceleration of
"-2.50 m/s at an angle of 50.0° with respect to the + x direction. It also has an initial
velocity of vi = 7.00 m/s at an angle of 10,0° The object begins at the coordinates (0, 0).
a) What are the coordinates of the object at t = 7.00 s?
Want Cx, y) at t =?4
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b) What is its total velocity vector of the object as a magnitude and direction at t = 7.00 s?
a)
Ov= Ton
In reaching her destination, a backpacker walks with an average velocity of 1.18 m/s, due west. This average velocity
results, because she hikes for 5.06 km with an average velocity of 2.21 m/s due west, turns around, and hikes with an
average velocity of 0.717 m/s due east. How far east did she walk (in kilometers)?
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East
West
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Units
Number
Chapter 3 Solutions
COLLEGE PHYSICS
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