# How to find magnitude of centripetal acceleration and of net force?

## Homework Statement

A ferris wheel at a carnival has a radius of 12 m and turns so that the speed of the riders is 8m/s
a) what is the magnitude of the centripetal acceleration of the riders?
b) what is the magnitude of the net force required to produce this centripetal acceleration for a rider with a mass of 70kg?

## Homework Equations

Centripetal acceleration = v^2/r
F = ma
Fnet = N - W = m(centripetal acceleration)

## The Attempt at a Solution

centripetal acceleration = 8^2/ 12 = 5.33 m/s^2

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Doc Al
Mentor
centripetal acceleration = 8^2/ 12 = 5.33 m/s^2
Looks good.

Looks good.
so, 5.33 m/s^2 would be the answer for part A and for part B i just multiply the acceleration by the mass?

Doc Al
Mentor
so, 5.33 m/s^2 would be the answer for part A and for part B i just multiply the acceleration by the mass?
That's correct.

Boy was I over thinking that. Thanks a lot for the clarification