What constant acceleration is required to increase the speed of a car from 20 mi/h to 58 mi/h in 4 seconds? (Round your answer to two decimal places.)

Answer 1

To find acceleration, use equation...

(velocity final - velocity initial) / change in time

where

velocity final = 58 mi/h

velocity initial = 20 mi/h

change in time = 4 seconds

convert 58 mi/h to m/s which is about 22.352 m/s

convert 20 mi/h to m/s which is about 8.9408 m/s

plug in new information and given change in time into equation

((22.352 m/s) - (8.9408 m/s)) / 4 seconds =

Your answer is:

3.3528 m/s^2