Question

A man driving a car traveling at 30m/s slams on the brakes and accelerates in the negative direction at 4.75 m/s2, how far does the car travel before it stops?

Answer 1

Answer:

94.73 meters.

Explanation:

Using SUVAT.

s = ?

u = 30

v = 0

a  = -4.75

t = ?

$v^{2}=u^2+2as\\0=30^2+2(-4.75)s\\\\900=9.5s\\s = 94.73$