The average acceleration during this time interval is [tex]-2.67 \mathrm{m} / \mathrm{s}^{2}[/tex]
Explanation:
Average acceleration can be measured as the ratio of change in speed to change in time. As the initial speed at initial time is 30 m/s at t = 0 and then at t = 6 s, the speed is decreased to 14 m/s. Then the average acceleration will be
[tex]Average acceleration =\frac{14-30}{6-0} =-2.67m/s^{2}[/tex]
So the average acceleration is negative which indicates that there is deceleration occurrence in the system.
