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## Homework Statement

Find the total energy of the following (mass m= 2 kg) oscillator.

## Homework Equations

x=2cos(6∏t)

## The Attempt at a Solution

Wouldn't I take my Amplitude of 2 and my period of 6 mulitply them together to get my max velocity of 12 then using KE = 1/2msquared I would take 1/2(2)(12)squared to get 144. But this is no where close to being right. My choice are:

A) 1320

B) 1420

C) 1520

D) 1620

E) 1720

F) 1820