A mass is attached to a horizontal spring

PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

0.40\,\text{kg}

mass is attached to a horizontal spring. Measurements show that the restoring force on the mass is

F=-(12\,\text{N/m})x

, where

x

is the displacement from equilibrium. Assuming negligible friction, determine the angular frequency of the resulting oscillation. (a)

30\,\text{rad/s}

(b)

2.2\,\text{rad/s}

(c)

5.5\,\text{rad/s}

(d)

3.5\,\text{rad/s}