Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 2, Problem 72P
(a)
To determine
The height of the elevator from the elevator shaft when the bolt came loose.
(b)
To determine
The speed of the bolt as it hits the bottom.
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Include free body diagram
Test 2
МК
02
5. (a) When rebuilding her car's engine, a physics major must exert 300 N of force to insert a dry
= 0.03 (15 pts)
piston into a steel cylinder. What is the normal force between the piston and cylinder?
What force would she have to exert if the steel parts were oiled? Mk
Giren
F = 306N
MK-0.3
UK = 0.03
NF = ?
2. A powerful motorcycle can produce an acceleration of 3.50 m/s² while traveling at 90.0 km/h. At that
speed the forces resisting motion, including friction and air resistance, total 400 N. (Air resistance is
analogous to air friction. It always opposes the motion of an object.) What force does the motorcycle
exert backward on the ground to produce its acceleration if the mass of the motorcycle with rider is 245
ke?
a = 350 m/s 2
Chapter 2 Solutions
Physics for Scientists and Engineers
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