Question

A car traveling at 98 km/h comes to a stop in 15 s. What is the car's acceleration in km/h/s?

Answer 1

Car's acceleration is 6.53 km/h/s

Answer 2

Acceleration of the car is 6.53 km/h/s

Step-by-step explanation:

It is given that,

Initial velocity of the car is, u = 98 km/h

Finally it is coming to rest so v = 0

Time taken to stop, t = 15 s

We have to find the acceleration of the car. It is given by the ratio of change in velocity and time taken.

`a=(dv)/(dt)`

`a=(98\ km/h-0)/(15\ s)`

a = 6.53 km/h/s

Hence, the acceleration of the car is 6.53 km/h/s