Joanna and her brother are skiing together while Joanna is holding the end of a rope tied to her brother. They are both moving at a velocity of 7.20kph on a sloping portion of the ski slope. Joanna notices that they are approaching a steep ski slope. She then pulls the rope with an average force of 7 Newtons. If the angle of the rope will not change and the coefficient of kinetic friction between her brother and the ground is 0.10, determine (a) the time required for her brother’s speed to be cut in half, and (b) the distance traveled in this time.

Joanna and her brother are skiing together while Joanna is holding the end of a rope tied to her brother. They are both moving at a velocity of 7.20kph on a sloping portion of the ski slope. Joanna notices that they are approaching a steep ski slope. She then pulls the rope with an average force of 7 Newtons. If the angle of the rope will not change and the coefficient of kinetic friction between her brother and the ground is 0.10, determine (a) the time required for her brother’s speed to be cut in half, and (b) the distance traveled in this time.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter1: Heat, Temperature, And Pressure

Section: Chapter Questions

Problem 17RQ: Convert 22C to Fahrenheit.

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