Question 3: a. Ina roller coaster the ride includes a vertical drop of 120 m. Suppose that the coaster has a speed of 4.0 m/s at the top of the drop. Neglect frietion, air resistance, and find the speed of the riders at the bottom. b. The skateboarder in Figure is coasting down a ramp of 30°, weight of the person is 575 N and the frictional force is 125 N. Find the normal force from the surface. Also, determine the net work done by the three forces when the person coasting down for a distance of 9.0 m. 30 ...

Question 3: a. Ina roller coaster the ride includes a vertical drop of 120 m. Suppose that the coaster has a speed of 4.0 m/s at the top of the drop. Neglect frietion, air resistance, and find the speed of the riders at the bottom. b. The skateboarder in Figure is coasting down a ramp of 30°, weight of the person is 575 N and the frictional force is 125 N. Find the normal force from the surface. Also, determine the net work done by the three forces when the person coasting down for a distance of 9.0 m. 30 ...

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter7: Work And Kinetic Energy

Section: Chapter Questions

Problem 75P: (a) How long would it take a 1.50105kg airplane with engines that produce 100 MW of power to reach a...

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