Physics

Problem

A laboratory inertial balance has a force constant of

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

. An unknown body mounted on it performs small oscillations of period

0.90\,\text{s}

. The same body shows a reading of

3.10\,\text{N}

on a spring balance at a place where

g = 9.8\,\text{m\,s}^{-2}

. Calculate: (i) the mass of the body obtained from the inertial balance, (ii) the percentage difference between this value and the mass obtained from the spring balance.

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