Asked by Troubled

The carnival ride shown in Figure 7-18 has a 2.0 m radius and rotates once each .90 s

a. Find the speed of the rider.
b. Find the centripetal acceleration of the rider.
c. What produces this acceleration?
SOLUTIONS PROVIDED:
a. 141
b. 98
c. --Explain--

Completely stuck and I don't get the answer in any way.
Answered by bobpursley
The acceleration is proviced by the rotating wheel, and more importantly, whatever is holding the rider in place. That force is accelerating the rider inward.

a. v=2PIr/period=6.28*2/.9 how exactly did you get 141?

b. centacceleratio= v^2/r
Answered by Troubled
An answer key provided, although I was in a bit of a rush so I could have possibly copied the answer down wrong...
Answered by Anon
she could have meant 14.1... just saying
Answered by a
a ) it is 2 *pi *2/0.9 = 13.9 m/s
b) 13.9ˆ2 /2 = 96,6 m/sˆ2 Correct?
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