COLLEGE PHYSICS,VOLUME 1
2nd Edition
ISBN: 9781319115104
Author: Freedman
Publisher: MAC HIGHER
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Chapter 6, Problem 47QAP
To determine
Work required to halt the train is moving at 90 km/h
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3. The problem that shall not be named.
m
A
(a) A block of mass m = 1 kg, sits on an incline
that has an angle 0. Find the coefficient of
static friction by analyzing the system at
imminent motion. (hint: static friction will
equal the maximum value)
(b) A block of mass m = 1kg made of a different
material, slides down an incline that has an
angle 0 = 45 degrees. If the coefficient of
kinetic friction increases is μ = 0.5 what is
the acceleration of the block?
k
2. Which of the following point towards the center
of the circle in uniform circular motion?
(a) Acceleration.
(b) Velocity, acceleration, net force.
(c) Velocity, acceleration.
(d) Velocity, net force.
(e) Acceleration, net force.
Problem 1. (20 pts)
The third and fourth stages of a rocket are coastin
in space with a velocity of 18 000 km/h when a smal
explosive charge between the stages separate
them. Immediately after separation the fourth stag
has increased its velocity to v4 = 18 060 km/h. Wha
is the corresponding velocity v3 of the third stage
At separation the third and fourth stages hav
masses of 400 and 200 kg, respectively.
3rd stage
4th stage
Chapter 6 Solutions
COLLEGE PHYSICS,VOLUME 1
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