Consider the diagram for question 2. A person of mass 70.5 kg is on a roller coaster at the top of the first hill with speed 4.29 m/s. The top of the first hill is at a height of 20.4 Im above the ground. Position B is situated atop a hill that we can approximate using a circle of radius 13.9 m. At B, the person experiences a net force precisely equal to the force of gravity, Fg = mg[down]. Througout the ride, assume perfect conservation of mechanical energy. a) Calculate the total work done on the person from the starting position to position B. Hint: Find the speed at B and use the work-energy theorem. b) Calculate the height of B above the ground. A B

Consider the diagram for question 2. A person of mass 70.5 kg is on a roller coaster at the top of the first hill with speed 4.29 m/s. The top of the first hill is at a height of 20.4 Im above the ground. Position B is situated atop a hill that we can approximate using a circle of radius 13.9 m. At B, the person experiences a net force precisely equal to the force of gravity, Fg = mg[down]. Througout the ride, assume perfect conservation of mechanical energy. a) Calculate the total work done on the person from the starting position to position B. Hint: Find the speed at B and use the work-energy theorem. b) Calculate the height of B above the ground. A B

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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Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.

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