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August 22, 2014

Homework Help: Physics

Posted by Jennifer on Monday, December 6, 2010 at 11:29pm.

A loop-the-loop ride at an amusement park has a radius of 5 m. At the highest point, the rider moves at 8 m/s. At the lowest point the rider moves at 13 m/s. Find what you would feel like you weigh at those points. (This force represents the force of the seat against your rear end; its F(app) and it takes the place of Tension for the ball on the string.)

I don't understand. If I replace Tension in the following equation, I will have 2 unknowns:

(highest point): T+mg=(mv^2)/R
F(app)+mg=(mv^2)/R
(lowest point): T-mg=(mv^2)/R
F(app)-mg=(mv^2)/R

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