- #1

- 2

- 0

## Homework Statement

A 200 g ball attached to a spring with spring constant 2.40 N/m oscillates horizontally on a frictionless table. Its velocity is 20.0 cm/s when x=−5.00cm.

What is the amplitude of oscillation?

## Homework Equations

f=√(k/m) /2π

x(t) = Acos(2πft)

v(t) = -2πfAsin(2πft)

## The Attempt at a Solution

I found that t = 0.137s, and A turned out to be negative, so it was probably wrong.