- #1

vanitymdl

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How many revolutions does it perform per second, i.e, what is the motion\'s frequency?

______ Rev / s

Find the train\'s period of revolution.

______ s

This is how I worked out the problem:

v^2/r = rw^2

.317^2/1.73 = 1.73w^2

.317^2/1.73^2 = w^2

w = 0.18323699421 radians per second.

there are 2 pi radians, so it takes 2pi radians / .1832 radians/second = seconds

34.3 seconds

1.75 revolutions per second (60/34.3)

I'm getting that 1.75 rev/s is wrong and I don't know why or how