Physics Fundamentals
2nd Edition
ISBN: 9780971313453
Author: Vincent P. Coletta
Publisher: PHYSICS CURRICULUM+INSTRUCT.INC.
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Chapter 5, Problem 12P
(a)
To determine
To describe: The value of the normal force is to be stated.
(b)
To determine
To describe: The frictional force on the skis is to be stated.
(c)
To determine
To describe: The coefficient of the kinetic friction is to be stated.
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A skier of mass 64 kg skis straight down a 12 degree slope at constant velocity. Draw a free-body diagram of the skier with the various external forces acting on her. Include the force of air resistance, which is directed opposite the velocity. (a) Find the value of the normal force. (b) The force of air resistance has a magnitude of 75 N. Find the frictional force on the skis. (c) What is the coefficient of kinetic friction?
A person pushes horizontally with a force of 200. N on a 56.0 kg crate to move it across a level floor. The coefficient of kinetic friction is 0.19. (a) What is the magnitude of the frictional force? (b) What is the magnitude of the crate's acceleration?
A skier of mass 57 kg skis straight down a 11° slope at constant velocity. Draw a free-body diagram of the skier with the various external forces acting on her. Include the force of air resistance, which is directed opposite the velocity.
(a) Find the value of the normal force.(b) The force of air resistance has a magnitude of 76 N. Find the frictional force on the skis.(c) What is the coefficient of kinetic friction?
Chapter 5 Solutions
Physics Fundamentals
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