Question

A car speeds up from 15 m/s to 30 m/s in 12 seconds. What is the acceleration of the car?

Answer 1

1.25 m/s would be the final answer after doing a kinematic equation.

Answer 2

The acceleration of the car is 1.25 m/s².

Step-by-step explanation:

Given that,

Initial velocity = 15 m/s

Final velocity= 30 m/s

Time t = 12 sec

We need to calculate the acceleration of the car

Using equation of motion

`v = u+at`

`a =(v-u)/(t)`

Where, v = final velocity

u - initial velocity

t = time

Put the value in the equation

`a =(30-15)/(12)`

`a=(15)/(12)`

`a =1.25\ m/s^2`

Hence, The acceleration of the car is 1.25 m/s².