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Acceleration

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  • What is speed?
    distance covered over a certain period of time
  • A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed
    10 m/s
  • What is the average speed of a person who swims 105m in 70s?
    1.5 m/s
  • Is it still considered acceleration when a car goes around in circles at a constant speed?
    Yes, because of changing directions
  • This is the rate of a moving object based only on distance and time.
    Speed
  • Changes in our speed, direction or both are called?
    Acceleration
  • A car accelerates from a standstill to 70 m/s in 10 seconds. What is the acceleration?
    7 m/s/s
  • What is the formula to calculate speed?
    S = d/t
  • What two measurements are necessary for calculating speed?
    distance and time
  • Acceleration is defined as the change in velocity divided by?
    time
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