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## Homework Statement

The displacement of the mass in a mass-spring system is given by the expression x(t) =(0.120 m) sin(1.73 t). What is the maximum velocity of the mass?*

A.* 0.348 m/s

B.* 0.307 m/s

C.* 0.256 m/s

D.* 0.208 m/s

E.* 0.175 m/s*

## Homework Equations

V=omegaA

## The Attempt at a Solution

I'm guess that's the equation I need to use because the answer is .208 m/s but I don't understand how that works. because one value is the period and the other is the amplitude for that equation to work i need the angular frequency?