Physics for Scientists and Engineers, Vol. 1
6th Edition
ISBN: 9781429201322
Author: Paul A. Tipler, Gene Mosca
Publisher: Macmillan Higher Education
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Chapter 6, Problem 41P
(a)
To determine
Work done by force on the particle.
(b)
To determine
The component of force in direction of displacement.
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At a particular instant, a 1.0-kg particle’s position is r → = (2.0i ^ − 4.0j ^ + 6.0k ^ )m , its velocity is v → = (−1.0i ^ + 4.0j ^ + 1.0k ^ )m/s , and the force on it is F → = (10.0i ^ + 15.0j ^ )N . (a) What is the angular momentum of the particle about the origin? (b) What is the torque on the particle about the origin? (c) What is the time rate of change of the particle’s angular momentum at this instant?
velocity (m/s)
x-position (m)
F
→→→→x
A varying
force causes the velocity of a 8 kg particle to vary with position as:
v = 6 x + 15 where v is in m/s and x is in meters. Determine the magnitude of
the force in N when the velocity v = 6 m/s.
A warehouse worker is pushing a 90.0 kg crate with a horizontal force of 300 N at a speed of v = 0.850 m/s across the warehouse floor. He encounters a rough horizontal section of the
floor that is 0.75 m long and where the coefficient of kinetic friction between the crate and floor is 0.360.
m
(a) Determine the magnitude and direction of the net force acting on the crate while it is pushed over the rough section of the floor.
magnitude
Have you drawn a force diagram and identified all forces acting on the crate? N
direction
--Select--
X Have you drawn a force diagram and identified all forces acting on the crate?
(b) Determine the net work done on the crate while it is pushed over the rough section of the floor.
Can you write an expression for the net work done on the crate in terms of the net force acting on the crate? J
(c) Find the speed of the crate when it reaches the end of the rough surface.
Can you develop an expression for the final speed of the crate in terms of its initial…
Chapter 6 Solutions
Physics for Scientists and Engineers, Vol. 1
Ch. 6 - Prob. 1PCh. 6 - Prob. 2PCh. 6 - Prob. 3PCh. 6 - Prob. 4PCh. 6 - Prob. 5PCh. 6 - Prob. 6PCh. 6 - Prob. 7PCh. 6 - Prob. 8PCh. 6 - Prob. 9PCh. 6 - Prob. 10P
Ch. 6 - Prob. 11PCh. 6 - Prob. 12PCh. 6 - Prob. 13PCh. 6 - Prob. 14PCh. 6 - Prob. 15PCh. 6 - Prob. 16PCh. 6 - Prob. 17PCh. 6 - Prob. 18PCh. 6 - Prob. 19PCh. 6 - Prob. 20PCh. 6 - Prob. 21PCh. 6 - Prob. 22PCh. 6 - Prob. 23PCh. 6 - Prob. 24PCh. 6 - Prob. 25PCh. 6 - Prob. 26PCh. 6 - Prob. 27PCh. 6 - Prob. 28PCh. 6 - Prob. 29PCh. 6 - Prob. 30PCh. 6 - Prob. 31PCh. 6 - Prob. 32PCh. 6 - Prob. 33PCh. 6 - Prob. 34PCh. 6 - Prob. 35PCh. 6 - Prob. 36PCh. 6 - Prob. 37PCh. 6 - Prob. 38PCh. 6 - Prob. 39PCh. 6 - Prob. 40PCh. 6 - Prob. 41PCh. 6 - Prob. 42PCh. 6 - Prob. 43PCh. 6 - Prob. 44PCh. 6 - Prob. 45PCh. 6 - Prob. 46PCh. 6 - Prob. 47PCh. 6 - Prob. 48PCh. 6 - Prob. 49PCh. 6 - Prob. 50PCh. 6 - Prob. 51PCh. 6 - Prob. 52PCh. 6 - Prob. 53PCh. 6 - Prob. 54PCh. 6 - Prob. 55PCh. 6 - Prob. 56PCh. 6 - Prob. 57PCh. 6 - Prob. 58PCh. 6 - Prob. 59PCh. 6 - Prob. 60PCh. 6 - Prob. 61PCh. 6 - Prob. 62PCh. 6 - Prob. 63PCh. 6 - Prob. 64PCh. 6 - Prob. 65PCh. 6 - Prob. 66PCh. 6 - Prob. 67PCh. 6 - Prob. 68PCh. 6 - Prob. 69PCh. 6 - Prob. 70PCh. 6 - Prob. 71PCh. 6 - Prob. 72PCh. 6 - Prob. 73PCh. 6 - Prob. 74P
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