Att=0 a car has a speed of 30 m/s. att-6 s, its speed is 14 m/s.
what is its average acceleration during this time interval?

The average acceleration during this time interval is

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

So the average acceleration is negative which indicates that there is deceleration occurrence in the system.

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.

do you have a formula possibly