- #1

LBRRIT2390

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## Homework Statement

A 200g mass attached to a horrizontal spring oscillates at a frequency of 2.0 Hz. At one instant, the mass is at x=5.0cm and has v

_{x}= -30cm/s.

A. Determine the period. T= ____seconds

B. Determine the amplitude. A =____cm

C. Determine the maximum speed. v

_{max}= ____ cm/s

D. Determine the total energy. ____ J

## Homework Equations

A. T = 1/frequency

B. ?

C. v

_{max}= 2(pi)(f)(A) = 2piA/T

D. ?

Others: deltaL = mg/k where k=spring constant

## The Attempt at a Solution

A. Answer = 0.5 seconds from T = 1/f... T = 1/(2.0Hz)... T=0.5 secods

B.

C. v

_{max}=2pi(2.0Hz)(A)

D.

I'm not looking for just the answers; I am in desperate need of an explanation of HOW to do the problem. Any help is greatly appreciated!