Question

A sports car can move 100.0 m in the first 4.5 s of constant acceleration.

a. what is the car's acceleration?

Answer 1

Acceleration of the car,
`a=9.87\ m/s^2`

Step-by-step explanation:

Initial sped of the car, u = 0

Distance covered by the car, d = 100 m

Time taken, t = 4.5 s

Let a is the acceleration of the car. It can be calculated using second equation of kinematics as :

`d=ut+(1)/(2)at^2`

`d=(1)/(2)at^2`

`a=(2d)/(t^2)`

`a=(2* 100)/((4.5)^2)`

`a=9.87\ m/s^2`

So, the acceleration of the car is
`9.87\ m/s^2`. Hence, this is the required solution.