Essential University Physics (3rd Edition)
3rd Edition
ISBN: 9780134202709
Author: Richard Wolfson
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 69P
A hockey stick is in contact with a 165-g puck for 22.4 ms; during this time, the force on the puck is given approximately by F(t) = a + bt + ct2 where a = −25.0N, b = 1.25 × l05N/s, and c = −5.58 × 106 N/s2. Determine (a) the speed of the puck after it leaves the stick and (b) how far the puck travels while it’s in contact with the stick.
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An electron is a subatomic particle (m
accelerates from an initial velocity of +7.54 x 105 m/s to a final velocity of 2.22 x 106 m/s while traveling a distance of 0.0692 m.
= 9.11 x 1031 kg) that is subject to electric forces. An electron moving in the +x direction
The electron's acceleration is due to two electric forces parallel to the
axis: F1
9.04 x 10-17 N, and F2, which points in the -x
direction. Find the magnitudes of (a) the net force acting on the electron and (b) the electric force
F2
F,
F2
F,
on with available attempts.
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Chapter 4 Solutions
Essential University Physics (3rd Edition)
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