Question

A car starting from rest accelerates at a rate of 2 m/sec2 . Find the average speed of this object in the first 10 seconds.

Answer 1

The final speed of the car in the first 10 seconds will be 20 m/s.

Step-by-step explanation:

Given that,

Initial speed of the car, u = 0

Acceleration of the car,
`a=2\ m/s^2`

Time, t = 10 s

We need to find the speed of the car in the first 10 seconds. It can be calculated using first equation of motion. It is given by :

`v=u+at`

v is the final speed of the car

`v=at`

`v=2\ m/s^2* 10\ s`

v = 20 m/s

So, the final speed of the car in the first 10 seconds will be 20 m/s. Hence, this is the required solution.