A 63.2-kg skier coasts up a snow-covered hill that makes an angle of 31.6 ° with the horizontal. The initial speed of the skier is 9.62 m/s. After coasting a distance of 1.42 m up the slope, the speed of the skier is 3.94 m/s. (a) Find the work done by the kinetic frictional force that acts on the skis. (b) What is the magnitude of the kinetic frictional force? (a) NumberT1973.1 UnitsT) (b) Number UnitsT

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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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**Chapter 06, Problem 84**

*Your answer is partially correct. Try again.*

A 63.2 kg skier coasts up a snow-covered hill that makes an angle of 31.6° with the horizontal. The initial speed of the skier is 9.62 m/s. After coasting a distance of 1.42 m up the slope, the speed of the skier is 3.94 m/s. (a) Find the work done by the kinetic frictional force that acts on the skis. (b) What is the magnitude of the kinetic frictional force?

**Diagram Description:**
The diagram shows a skier moving up a slope inclined at an angle θ (31.6°) with the horizontal. There are two positions of the skier shown in the diagram:
1. Initial position: The skier starts with an initial velocity \( v_0 = 9.62 \, \text{m/s} \).
2. Final position: After traveling a distance \( s = 1.42 \, \text{m} \) up the slope, the skier's final velocity is \( v_f = 3.94 \, \text{m/s} \).

**Questions:**
(a) Find the work done by the kinetic frictional force that acts on the skis.
(b) What is the magnitude of the kinetic frictional force?

**Inputs:**
(a) Number: \( 1973.1 \, \text{Units} \)
(b) Number: \(\text{Units} \)

**Note:** For both parts (a) and (b), the units selected were incorrect, thus the answers are partially correct.
Transcribed Image Text:**Chapter 06, Problem 84** *Your answer is partially correct. Try again.* A 63.2 kg skier coasts up a snow-covered hill that makes an angle of 31.6° with the horizontal. The initial speed of the skier is 9.62 m/s. After coasting a distance of 1.42 m up the slope, the speed of the skier is 3.94 m/s. (a) Find the work done by the kinetic frictional force that acts on the skis. (b) What is the magnitude of the kinetic frictional force? **Diagram Description:** The diagram shows a skier moving up a slope inclined at an angle θ (31.6°) with the horizontal. There are two positions of the skier shown in the diagram: 1. Initial position: The skier starts with an initial velocity \( v_0 = 9.62 \, \text{m/s} \). 2. Final position: After traveling a distance \( s = 1.42 \, \text{m} \) up the slope, the skier's final velocity is \( v_f = 3.94 \, \text{m/s} \). **Questions:** (a) Find the work done by the kinetic frictional force that acts on the skis. (b) What is the magnitude of the kinetic frictional force? **Inputs:** (a) Number: \( 1973.1 \, \text{Units} \) (b) Number: \(\text{Units} \) **Note:** For both parts (a) and (b), the units selected were incorrect, thus the answers are partially correct.
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