An Eskimo returning from a successful fishing trip pulls a sled loaded with salmon. The total mass of the sled and salmon is 50.0 kg, and the Eskimo exerts a force on the sled by pulling on the rope. Suppose the coefficient of kinetic friction between the loaded sled and snow is 0.200. (a) The Eskimo pulls the sled 4.60 m, exerting a force of 1.05 102 N at an angle of θ = 0°. Find the work done on the sled by friction, and the net work. Wfric = J Wnet = J (b) Repeat the calculation if the applied force is exerted at an angle of θ = 30.0° with the horizontal. Wfric = J Wnet = J
An Eskimo returning from a successful fishing trip pulls a sled loaded with salmon. The total mass of the sled and salmon is 50.0 kg, and the Eskimo exerts a force on the sled by pulling on the rope. Suppose the coefficient of kinetic friction between the loaded sled and snow is 0.200. (a) The Eskimo pulls the sled 4.60 m, exerting a force of 1.05 102 N at an angle of θ = 0°. Find the work done on the sled by friction, and the net work. Wfric = J Wnet = J (b) Repeat the calculation if the applied force is exerted at an angle of θ = 30.0° with the horizontal. Wfric = J Wnet = J
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
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An Eskimo returning from a successful fishing trip pulls a sled loaded with salmon. The total mass of the sled and salmon is 50.0 kg, and the Eskimo exerts a force on the sled by pulling on the rope. Suppose the coefficient of kinetic friction between the loaded sled and snow is 0.200.
(a) The Eskimo pulls the sled 4.60 m, exerting a force of 1.05 102 N at an angle of θ = 0°. Find the work done on the sled by friction, and the net work.
(b) Repeat the calculation if the applied force is exerted at an angle of θ = 30.0° with the horizontal.
Wfric = | J |
Wnet = | J |
(b) Repeat the calculation if the applied force is exerted at an angle of θ = 30.0° with the horizontal.
Wfric = | J |
Wnet = | J |
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