Question

 A car travel from rest at a speed of 108km/h, brought to rest in 30s, find the distance covered in this time. ​

Answer 1

Explanation:

u=126 km/h=126×185m/s=35m/s

v=0

s=200m

Newton's Equation of motion

v2−u2=2as

02−352=2a(200)

a=−3.0625m/s2

Also

v=u+at

0=35−3.06t

t=11.4s