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April 20, 2014

Homework Help: Physics

Posted by Alphonse on Friday, October 26, 2012 at 2:10am.

A Ferris wheel (a vertical circle for the purposes of this question) with a radius 42.2 m is initially rotating at a constant rate, completing one revolution every 33.2 seconds. Suppose the Ferris wheel begins to decelerate at the rate of 0.0542 rad/s2.

[Note: If it helps you, for sake of definiteness, you may take the wheel to be rotating clockwise… though this is immaterial.]
 
a) Find the magnitude of the passenger's acceleration at that instant in m/s2.

b) What is the angle between the passenger's velocity vector and acceleration vector at that instant (in degrees)?

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