Motion 0.0 / 5 ? PhysicsMotionASOCR Created by: Robert WassinkCreated on: 29-04-17 12:41 Displacement The distance travelled in a particular direction (vector). 1 of 8 Instantaneous speed The speed at the moment it is measured - speed over an infinitesimal interval of time. 2 of 8 Average speed The rate of change in distance calculated over a complete journey. 3 of 8 Velocity A vector quantity equal to the rate of change of displacement. 4 of 8 Acceleration The rate of change of velocity, a vector quantity. 5 of 8 Stopping distance The total distance travelled from when the driver first sees a reason to stop, to when the vehicle stops. 6 of 8 Thinking distance The distance travelled between the moment when you first see a reason to stop, to the moment when you use the brake. 7 of 8 Braking distance The distance travelled from the time the brake is applied until the vehicle stops. 8 of 8
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