Question

How do u determine the average speed o f non uniform motion?

Answer 1

Explanation:

As the name suggests that a motion in which body covers unequal distances in equal intervals of time is known as a non – uniform motion.

We know are under v – t graph represents displacement of the body. As we can see for same time interval the area under A and B are different. So this is a non – uniform motion. So with respect to non–uniform motion we usually define average velocity. The average velocity formula is:

Average Velocity = Change in displacementTime Taken

From the equation of motion,

Displacement = ut + 12at2

Average Velocity = ut + 12at2t

= u + at2

From first equation of motion,

Average velocity = u + v − u2

Average Velocity = v + u2

Where, v = Final Velocity

u = Initial Velocity

Similarly we can define average speed. The formula for average speed is given us:

Average speed = Change in distanceTime Taken