The formula for average acceleration is a = (vf - vi)/t, where a is the average acceleration, vf is the final velocity, vi is the initial velocity, and t is the change in time.
Average acceleration is the overall change in velocity over a period of time, while instantaneous acceleration is the acceleration at a specific moment in time. Average acceleration takes into account the initial and final velocities, while instantaneous acceleration does not.
The units for average acceleration are typically meters per second squared (m/s^2) in the metric system and feet per second squared (ft/s^2) in the imperial system. These units represent change in velocity over time.
The average acceleration formula can be used to calculate the acceleration of objects in motion, such as cars, airplanes, or projectiles. It can also be used in sports to measure the acceleration of athletes or in engineering to determine the acceleration of machines or structures.
The accuracy of the average acceleration formula can be affected by external factors such as air resistance, friction, or uneven terrain. In addition, human error in measuring initial and final velocities or time can also impact the accuracy of the calculation.