Question

A car starts its motion from rest and accelerates with an acceleration of 3m/s2 speed reaches to 20.0m/sec. Find time interval during this motion.

Answer 1

The time interval is
`t = 6.667 \ s`

Step-by-step explanation:

From the question we are told that

The acceleration of the car is
`a = 3 m/s^2`

The velocity of the car is
`v= 20.0 \ m/s`

The final velocity of the car can be mathematically represented as

`v =u + at`

Now since the car start from rest u = 0 So

`v = 0 + at`

`v = at`

substituting values

`20 = 3 t`

`t = (20)/(3)`

`t = 6.667 \ s`