Forces - P2.1

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Distance, speed + velocity 

Speed (m/s) = distance (m) ÷ time (s)



When an object is stationary the line is horizontal (the distance does not change).

When moving at a steady speed it's a straight diagonal line - steeper means faster (bigger distance in the same time).

If the line slopes downwards the object is returning to the starting position (distance is getting less).

Velocity tells you how fast you are going and in what direction

Speed just tells you how fast you are going 


acceleration is when an object speeds up or changes its velocity

deceleration is when an object slows down or starts moving in the opposite direction

acceleration (m/s2) = change in speed (m/s) ÷ time (s)



The steeper the gradient of the line, the greater the 


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