Question

A particle is moving in a circle of diameter 5 metres what is the displacement when it completes one and a half revolution s ?

Answer 1

We know that , if we join the starting point with the end point with a straight line we will get the displacement.
The circle has diameter 5m.
After completing one revolution it will get to the exact point where it starts.
But, it goes half of the circle.
Then, it will come to the exact opposite of the starting point and it's displacement will be it's diameter.
So, the diameter of the circle is it's displacement.
So, your answer is 5m.

Hope, you will like the answer..

Answer 2

displacement when it completes one rev. is zero as it is coming back to the point from where it starts.
when he completes one rev. the displacement is zero and for the half rev. the displacement us the shortest distance between two points so it is tbe diametee of the circle sot the displacement is 5 m.
now totla diaplacement is 0 + 5=5
so displacement after ine and a ahalf re. is 5 m.