Question

define each &mathematical relations of the following. speed, velocity, acceleration​

Answer 1

Answer:

s=distance/speed

v=displacement /time

acceleration =(v-u)/t

Answer 2

Answer:

Average speed is distance divided by time. Velocity is speed in a given direction. Acceleration is change in velocity divided by time. Movement can be shown in distance-time and velocity-time graphs.

Velocity is not exactly the same as speed. Velocity has a direction as well as a speed. For example, 15 m/s is a speed, but 15 m/s North is a velocity (North is the direction).  

Commonly velocities are + (which means forwards) or - (which means backwards).  

For example, -15 m/s means moving backwards at 15 metres every second.

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