Jim is trying to improve his speed on the track so he can qualify for the State Championships. As he is running, he goes from 70 meters/minute (beginning speed) to 106 meters/minute (final speed) in 9 seconds. What is his acceleration?

His acceleration is meters per seconds²

Step-by-step explanation:

Acceleration is the rate of change of the speed

The formula of acceleration is , where

∵ Jim goes from 70 meters/minute (beginning speed) to

   106 meters/minute (final speed) in 9 seconds

∴ His initial speed = 70 meters/minute

- Change it the meter per second

∵ 1 minute = 60 seconds

∴  meters/second

∴ =  meters/second

∵ His final speed = 106 meters/minute

- Change it the meter per second

∴  meters/second

∴ =  meters/second

∵ The time of the change of his speed is 9 seconds

∴ t = 9

∵ The formula of acceleration is

- Substitute the values of t,  and in the formula above

∴  

∴ His acceleration is meters per seconds²