A car moving at comes to rest either in (without an airbag) or in (with an airbag)

PHYSICS · Single correct · CBSE · Physics · Laws of Motion · Laws of Motion

Problem

1000\,\text{kg}

car moving at

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

comes to rest either in

0.20\,\text{s}

(without an airbag) or in

0.60\,\text{s}

(with an airbag). What is the ratio of the magnitudes of the average stopping force without airbag to that with airbag? (a)

9:1

(b)

3:1

(c)

1:3

(d)

1:1