Question

A car starts from rest, speeds up with constant acceleration, and travels 400 meters in 10 seconds. What was the acceleration of the car in m/s2?

Answer 1

Acceleration of the car will be
`a=8m/sec^2`

Step-by-step explanation:

We have given that car starts from rest so initial velocity of the car u = 0 m/sec

And car traveled 400 m in 10 sec

So distance traveled by car s = 400 m

Time taken to compete this distance t = 10 sec

We have to find the acceleration of the car

From second equation of motion we know that
`s=ut+(1)/(2)at^2`

So
`400=0* 10+(1)/(2)* a* 10^2`

`a=8m/sec^2`

So acceleration of the car will be
`a=8m/sec^2`