Question

At 2 seconds, an object's velocity is 23 meters per second. At 9 seconds, the object's velocity is 38 meters per second. Assuming a constant acceleration, what is the acceleration in meters per second per second of the object? (If necessary, round to the nearest hundredth.)

Answer 1

Acceleration  = change of velocity / time

                       =    38 - 23) / (9 -2) =  15/7 =  2.14 m s^-2 to nearest hundredth