GCSE Physics - Acceleration From a Velocity-Time Graph
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The equation that links acceleration, final velocity, initial velocity and time is:
acceleration = ( final velocity - initial velocity ) ÷ time
The unit for initial and final velocity is metres / second (m/s)
The unit for acceleration is metres/second 2 (m/s2)
The unit for time is seconds (s)
Final velocity - initial velocity is the same as saying change in velocity.
Acceleration is how quickly an object’s velocity changes.
A positive change in velocity is called acceleration.
A negative change in velocity is called deceleration.
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