The chassis of a small car of mass is supported by four identical vertical springs…

PHYSICS · Single correct · CBSE · Physics · Oscillations · Oscillations

Problem

The chassis of a small car of mass

600\,\text{kg}

is supported by four identical vertical springs acting in parallel. After hitting a pothole, the car bounces up and down

12

times in

15\,\text{s}

. Neglecting damping, estimate the force constant of one spring. (a)

7.6\times10^{3}\,\text{N\,m}^{-1}

(b)

1.5\times10^{4}\,\text{N\,m}^{-1}

(c)

3.8\times10^{3}\,\text{N\,m}^{-1}

(d)

2.4\times10^{3}\,\text{N\,m}^{-1}