Answer :
Answer: 0.000353 m/[tex]s^{2} [/tex]
In this case, during 25 minutes of acceleration the treadmill velocity changed from -1.2m/s into -6.5m/s. Since the velocity and time unit is different, you need to convert the time from minutes to seconds too. To find the acceleration, the calculation would be
acceleration = final velocity - start velocity / time
acceleration= (-6.5m/s) - (-1.2m/s) / (25 minute x 60 second/min)= (-5.3m/s )/ 15000 sec
accerelation = 3.53 x [tex] 10^{-4} [/tex]m/[tex]s^{2} [/tex] = 0.000353 m/[tex]s^{2} [/tex]
In this case, during 25 minutes of acceleration the treadmill velocity changed from -1.2m/s into -6.5m/s. Since the velocity and time unit is different, you need to convert the time from minutes to seconds too. To find the acceleration, the calculation would be
acceleration = final velocity - start velocity / time
acceleration= (-6.5m/s) - (-1.2m/s) / (25 minute x 60 second/min)= (-5.3m/s )/ 15000 sec
accerelation = 3.53 x [tex] 10^{-4} [/tex]m/[tex]s^{2} [/tex] = 0.000353 m/[tex]s^{2} [/tex]