Physics

Problem

A horizontal spring system (

k = 400\,\text{N/m}

m = 1\,\text{kg}

) is oscillating on a frictionless surface. When the block is at a position

x = 0.03\,\text{m}

from equilibrium, it has a speed of

0.4\,\text{m/s}

. Calculate the amplitude of the oscillation.