6. A person is rolling their suitcase behind them at an angle of 23 degrees with the floor. The suitcase is pulled 5.0 meters forward. a) What is the work done on the suitcase? b) Suppose the suitcase is pulled for 7.5 seconds, what would be the power from the person? 7. Jenny is pulling a toboggan up an incline of 20 degrees with a force of 15 Newtons. How much work is done if the length of the incline is 5 meters? 8. A 65kg hiker climbs to the top of a 752m high mountain. a) How much work did the hiker do? b) If the path taken by the hiker covers a distance of 1650m, what average force was exerted by the hiker? Gravitational Potential Energy & Kinetic Energy 1. A hoist in an automobile service center raises a 1600kg car 1.8m off the floor. a) Calculate the car's gravitational potential energy relative to the floor. b) How much work did the hoist do on the car to raise it? Ignore friction. 2. A roast of beef in a refrigerator's freezer compartment has a potential energy of 35J relative to the floor. If the roast is 1.7m above the floor, what is the mass of the roast?
6. A person is rolling their suitcase behind them at an angle of 23 degrees with the floor. The suitcase is pulled 5.0 meters forward. a) What is the work done on the suitcase? b) Suppose the suitcase is pulled for 7.5 seconds, what would be the power from the person? 7. Jenny is pulling a toboggan up an incline of 20 degrees with a force of 15 Newtons. How much work is done if the length of the incline is 5 meters? 8. A 65kg hiker climbs to the top of a 752m high mountain. a) How much work did the hiker do? b) If the path taken by the hiker covers a distance of 1650m, what average force was exerted by the hiker? Gravitational Potential Energy & Kinetic Energy 1. A hoist in an automobile service center raises a 1600kg car 1.8m off the floor. a) Calculate the car's gravitational potential energy relative to the floor. b) How much work did the hoist do on the car to raise it? Ignore friction. 2. A roast of beef in a refrigerator's freezer compartment has a potential energy of 35J relative to the floor. If the roast is 1.7m above the floor, what is the mass of the roast?
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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