Show all work with step by step solution ## Educational ExerciseUse 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 \(10^2\) N at an angle of \(\theta = 0^\circ\). Find the work done on the sled by friction, and the net work.* \(W_{\text{fric}} =\) [__________] J* \(W_{\text{net}} =\) [__________] J**(b)** Repeat the calculation if the applied force is exerted at an angle of \(\theta = 30.0^\circ\) with the horizontal.* \(W_{\text{fric}} =\) [__________] J* \(W_{\text{net}} =\) [__________] J---## Exercise**(a)** The Eskimo pushes the same 50.0-kg sled over level ground with a force of 2.50 x \(10^2\) N exerted horizontally, moving it a distance of 7.40 m over new terrain. If the net work done on the sled is 3.00 x \(10^2\) J, find the coefficient of kinetic friction.* [__________]**(b)** Repeat the exercise with the same data, finding the coefficient of kinetic friction, but assume the applied force is upwards at a 40.0° angle with the horizontal.* [__________]---### **Hints:**- **Getting Started:** Consider the components of forces and the angle involved.- **I’m Stuck!:** Breaking down the forces into horizontal and vertical components may help.

a) Given: Distance moved by sled is 4.00 m. Force exerted on the sled is 1.25×102 N. Total mass of…

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 10 N at an angle of 0 = 0°. Find the work done on the sled by friction, and the net work. We %3D fric W net %3D

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 10 N at an angle of 0 = 0°. Find the work done on the sled by friction, and the net work. We %3D fric W net %3D

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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Question

Show all work with step by step solution

## Educational Exercise

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 \(10^2\) N at an angle of \(\theta = 0^\circ\). Find the work done on the sled by friction, and the net work.

* \(W_{\text{fric}} =\) [__________] J
* \(W_{\text{net}} =\) [__________] J

**(b)** Repeat the calculation if the applied force is exerted at an angle of \(\theta = 30.0^\circ\) with the horizontal.

* \(W_{\text{fric}} =\) [__________] J
* \(W_{\text{net}} =\) [__________] J

---

## Exercise

**(a)** The Eskimo pushes the same 50.0-kg sled over level ground with a force of 2.50 x \(10^2\) N exerted horizontally, moving it a distance of 7.40 m over new terrain. If the net work done on the sled is 3.00 x \(10^2\) J, find the coefficient of kinetic friction.

* [__________]

**(b)** Repeat the exercise with the same data, finding the coefficient of kinetic friction, but assume the applied force is upwards at a 40.0° angle with the horizontal.

* [__________]

---

### **Hints:**

- **Getting Started:** Consider the components of forces and the angle involved.
- **I’m Stuck!:** Breaking down the forces into horizontal and vertical components may help.

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