An automobile of mass travelling at is brought to rest by a constant net force in

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

An automobile of mass

1000\,\text{kg}

travelling at

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

is brought to rest by a constant net force in

0.06\,\text{s}

. Calculate the magnitude of this average force. (a)

1.5\times10^{5}\,\text{N}

(b)

2.0\times10^{5}\,\text{N}

(c)

3.0\times10^{5}\,\text{N}

(d)

3.0\times10^{4}\,\text{N}