Question

A baseball is being thrown, it goes from 0 m/s to 40 m/s in 0.15 sec., what is the acceleration in g’s?

Answer 1

Here initial velocity = 0 m/s
         final velocity  =  40 m/s
         time               = 0.15 s
acceleration =  final velocity - initial velocity
                                    time
                    =  40 - 0
                         0.15
                    =     40/15*100 = 266.67 m/s²

Answer 2

Acceleration (a) = (v - u) / t
a = (40 - 0) m/s / (0.15 s)
a = 266.67 m/s² ……[1]

g = 9.8 m/s² ………[2]

Divide equation [1] by [2]
a / g = 266.67 / 9.8
a = 27.21 g

Acceleration of baseball is 27.21 g
(Where g is acceleration due to gravity)