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Speed, Velocity, Acceleration (Velocity (Velocity is the distance traveled…
Speed, Velocity, Acceleration
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Acceleration
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If a car starts, moving due north at velocity 2m/s and accelerates at this constant speed, we write it as 2m/s^2. This is said to be uniform
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Timers
Motion Sensors: use ultrasonic echo tech. to spot the distance of an object from the sensor. It is connected to a computer n order to make a distance-time graph
Ticker-tape Timer: can measure speed and accelerations. Something pulls the tape at a certain rate. The 'ticker' puts a dot on the tape 50 times per second. the distance between the dots is the average speed of what is pulling the tape