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Acceleration Average acceleration is the rate of the change of velocity. It is measured in m/s2. In a game acceleration can be used to find the speed of a player whose velocity changes while they are playing. Average acceleration has both direction and magnitude. This means that a player moves in a direction but also either speeds up or slows down.
Acceleration (average) = change in velocity/ change in time (Final velocity-initial velocity) (Final time- initial time) A= DV/ D tExample: A player runs forward to hit the ball speeding up from 0.0 m/s to 3 m/s in 3s. What is the average acceleration of the player? A= DV/ D tA= (3m/s – 0.0 m/s) / (3s – 0.0s) A= 3m/s / 3 m/s Answer: A= 1 m/s2
In this picture, the ball is speeding up (the red arrows) from 0.0 to 8m/s in 2s. From the starting point to it's ending point, the ball accelerates at an average acceleration of 4m/s. |
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