Problem 7: Rescue workers lower a sled and injured ice climber, with a combined mass of 95 kg, down a 60° slope at a constant speed as shown in the diagram. The coefficient of kinetic friction between the sled and the snow is 0.1. Suppose the sled is lowered 30 m along the hillside. a) How much work is done by friction as the sled/climber moves along the hill? b) How much work is done by the gravitational force as the sled/climber moves along the hill? c) How much work is done by the tension force in the rope as the sled/climber moves along the hill? d) What is the net work done on the sled/climber?
Problem 7: Rescue workers lower a sled and injured ice climber, with a combined mass of 95 kg, down a 60° slope at a constant speed as shown in the diagram. The coefficient of kinetic friction between the sled and the snow is 0.1. Suppose the sled is lowered 30 m along the hillside. a) How much work is done by friction as the sled/climber moves along the hill? b) How much work is done by the gravitational force as the sled/climber moves along the hill? c) How much work is done by the tension force in the rope as the sled/climber moves along the hill? d) What is the net work done on the sled/climber?
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter7: Work, Energy, And Energy Resources
Section: Chapter Questions
Problem 8PE: Suppose the ski patrol lowers a rescue sled and victim, having a total mass of 90.0 kg, down a 60.0°...
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