Motion in a straight line – definitions and graphs

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Position is a vector: the distance and direction from the origin O. Displacement is a vector: the change of position. Distance is a scalar: the magnitude of displacement. Velocity is a vector: the rate of change of displacement. Speed is a scalar: the magnitude of velocity. Average velocity=resultant displacement/total time Average speed=total distance/total time The gradient of a displacement-time graph is the velocity. Acceleration is the rate of change of velocity. The gradient of a velocity-time graph is the acceleration. Acceleration=change in velocity/time=(v-u)/t The area between the \math-container{v-t} graph and the \math-container{t}-axis is the displacement

Motion in a straight line – definitions and graphs

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