Acar accelerates from rest for 5 seconds until it reaches a speed of 20 m/s. what is the car's acceleration in meters per second per second? a. 4 b. 1 c. 2 d. 5 e. 3

Acceleration = change in velocity divided by time taken...

I.e Acceleration = (Final velocity - Initial Velocity) /time taken...

The question says the body accelerate from rest... Therefore it's initial velocity = 0

It reach a speed(velocity) of 20m/s.. My final velocity

And the time taken to attain the velocity = 5 seconds

Therefore

acceleration = (20-0)/5

a = 20/5

a = 4ms¯²

Hope this helped

The correct choice is c

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