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P9 Motion (Velocity and Acceleration (A scalar is a physical quantity that…
P9 Motion
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Velocity-Time Graphs
If a velocity-time graph is a horizontal line, the acceleration is zero
A positive gradient on a velocity-time graph represents positive acceleration, a negative gradient represents deceleration
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Analyzing Motion Graphs
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The speed at any instant in time, of an object moving at changing speed is given by the gradient of the tangent to the line on its distance-time graph
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The speed of an object moving at constant speed is give by the gradient of the line on its distance-time graph