An inertial balance has an effective restoring force constant of

PHYSICS · Subjective · CBSE · Physics · Oscillations · Oscillations

Problem

20\,\text{N\,m}^{-1}

. When an unknown object is clamped to it,

20

complete oscillations take

26\,\text{s}

. Calculate the mass of the object. (Take

\pi^{2}=9.87