Question

Chetra was driving a car when he realized that it was close to the turn to enter the house He slowed down his car from 190m / S to 12m / s for 20s Calculate the acceleration of his car.

Answer 1

`-8.9(m)/(s^2)`

Explanation:

Given:

Final Speed: 190 m/s

Initial Speed: 12 m/s

Time: 20 sec

The acceleration can be calculated using the following formula:

`a=(\Delta v)/(\Delta t)`

Substituting the values and we calculate the acceleration, just like this:

`\begin{gathered} a=(12-190)/(20-0) \\ a=-8.9(m)/(s^2) \end{gathered}`

The acceleration is -8.9 meters per second squared.