A block attached to a light spring performs SHM with where

PHYSICS · Subjective · CBSE · Physics · Oscillations · Oscillations

Problem

A block attached to a light spring performs SHM with

x(t)=A\cos(\omega t+\phi)

where

\omega = 4.0\,\text{rad s}^{-1}

. At

t = 0

, its displacement is

-0.040\,\text{m}

and its velocity is

+0.20\,\text{m s}^{-1}

. Calculate: (i) the amplitude

A

, and (ii) the phase constant

\phi

in the range

0<\phi<2\pi