The time required for a vehicle to travel 500m if it starts from rest and accelerates at 4.5m/s² is 14.9 s.
Given:
s = 500 m
a = 4.5 m/s²
u = 0
Acceleration is the rate at which velocity changes with time, in terms of both speed and direction. A point or an object moving in a straight line is accelerated if it speeds up or slows down.
If an object starts from rest then it's initial velocity would be zero however if it is already in motion then it does have an initial velocity of greater than zero.
According to the Kinematic equation
s = ut + 1/2 at²
s = 0 + 1/2 at²
t² = 2s/a = (500 x 2 )/ 4.5 = 222.222 s²
t = 14.9 s
To learn more about the application of kinematic equations please click on the link https://brainly.com/question/26469691
#SPJ9
