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Motion

Speed (m/s) = Distance (m) / Time (s) - (Time = Speed / Distance) or
(Distance = Speed x Time)
Distance-time graphs:
Vertical Axis = Distance traveled
Horizontal Axis = Time
Line on graph horizontal = Stationary
Sloped, straight line = Steady speed
Steeper the line = Greater the…

Page 2

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Weight and friction

Weight (N) = mass (kg) x gravitational field strength (N/kg)
Falling = Accelerate downwards ­ no air resistance down - RF = down/ Speed gained
= weight stays the same by air resistance increases ­ RF = down (still) / air
resistance = weight ­ reaches a…

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