EBK PHYSICS FOR SCIENTISTS AND ENGINEER
6th Edition
ISBN: 9781319321710
Author: Mosca
Publisher: VST
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Chapter 12, Problem 56P
To determine
The position of centre of gravity relative to the feet of person.
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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
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
kg? (10 pts)
a = 3.50 m/s 2
distance 90 km/h
=
3.50m/62
M =
245g
Chapter 12 Solutions
EBK PHYSICS FOR SCIENTISTS AND ENGINEER
Ch. 12 - Prob. 1PCh. 12 - Prob. 2PCh. 12 - Prob. 3PCh. 12 - Prob. 4PCh. 12 - Prob. 5PCh. 12 - Prob. 6PCh. 12 - Prob. 7PCh. 12 - Prob. 8PCh. 12 - Prob. 9PCh. 12 - Prob. 10P
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