Physics

Problem

0.25\,\text{kg}

mass is attached to a vertical spring. The system completes

40

oscillations in

50\,\text{s}

. The spring constant

k

is approximately a)

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

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

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

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