A hockey puck of mass 0.17 kg is shot across a rough floor with the roughness different at different places, which can be described by a position-dependent coefficient of kinetic friction. For a puck moving along the x-axis, the coefficient of kinetic friction is the following function of x, where x is in m: μ(x) = 0.1 + 0.05x. Find the work done by the kinetic frictional force on the hockey puck when it has moved (a) from x = 0 to x = 2 m , and (b) from x = 2 m to x = 4 m .
A hockey puck of mass 0.17 kg is shot across a rough floor with the roughness different at different places, which can be described by a position-dependent coefficient of kinetic friction. For a puck moving along the x-axis, the coefficient of kinetic friction is the following function of x, where x is in m: μ(x) = 0.1 + 0.05x. Find the work done by the kinetic frictional force on the hockey puck when it has moved (a) from x = 0 to x = 2 m , and (b) from x = 2 m to x = 4 m .
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter7: Work And Kinetic Energy
Section: Chapter Questions
Problem 33P: A 5.0-kg box rests on a horizontal surface. The coefficient of kinetic friction between the box and...
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A hockey puck of mass 0.17 kg is shot across a rough floor with the roughness different at different places, which can be described by a position-dependent coefficient of kinetic friction. For a puck moving along the x-axis, the coefficient of kinetic friction is the following function of x, where x is in m: μ(x) = 0.1 + 0.05x. Find the work done by the kinetic frictional force on the hockey puck when it has moved (a) from x = 0 to x = 2 m , and (b) from x = 2 m to x = 4 m .
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