Use the worked example above to help you solve this problem. 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 4.00 m, exerting a force of 1.25 x 102 N at an angle of 8 = 0°. Find the work done on the sled by friction, and the net work. W fric = W net (b) Repeat the calculation if the applied force is exerted at an angle of e = 30.0° with the horizontal. W fric W net

Use the worked example above to help you solve this problem. 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 4.00 m, exerting a force of 1.25 x 102 N at an angle of 8 = 0°. Find the work done on the sled by friction, and the net work. W fric = W net (b) Repeat the calculation if the applied force is exerted at an angle of e = 30.0° with the horizontal. W fric W net

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

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Use the worked example above to help you solve this problem. 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 4.00 m, exerting a force of 1.10 x 102 N at an angle of 0 = 0°. Find the work done on the sled by friction, and the net work. W fric = -392 282 W. net Your response differs from the correct answer by more than 100%. J (b) Repeat the calculation if the applied force is exerted at an angle of 0 = 30.0° with the horizontal. W fric = W. %3D net
anwer should fit the the blanks: Momo with mass m is sliding down an inclined plane that makes an angle Φ relative to the horizontal. The coefficient of kinetic friction between Momo and the inclined plane is μk. Obtain an expression for Momo's acceleration along the incline. Assign a rotated Cartesian plane so that the acceleration is along the positive x-axis and the normal force is along the positive y-axis. The component of the weight parallel to Momo's acceleration is wx = mgBlank 1Φ. The magnitude of the frictional force is f = μkBlank 2. The normal force on Momo is n = mgBlank 3Φ. With these expressions and applying Newton's second law, we arrive at an expression for Momo's acceleration: a = Blank 4 ( Blank 5 - μkBlank 6 )
A skier is standing on a 30o hill. Draw the hill and add idealized force vectors that represent the force of the skier (FS), the normal force (FN), and the force of friction (FF).
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Ex: Determine the horigental and vertical compenents of the pin reaction at Bof fiqure on member ABC. The 2000lb force is applied to a. rope which. passes over the smooth pully at A . Neglect the weights of all members. →2000 مقوتقمدگ Selit