Question

A particle is moving in a circle of diameter 5 metre calculate the total displacement after completing two and a half revolutions

Answer 1

Explanation:

Now, in the next half revolution, thedisplacement is equal to the diameter of the circle. Thus, total displacement of the particle is; Displacement = 5 m.

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Answer 2

Answer:

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Explanation:

Heyy Bro !

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Suppose a circle with diameter 5 m 

then its radius will be 5/2 m 

first lets calculate distance :

the total distance in one and half revolution is 2 π r + π r 

                                                                    =  3π r

                                                                    =  3  X 22/7 X 5/2

                                                                    =  23.57 m

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Displacement :

When  it cover one revolution the displacement becomes zero 

so the total displacement is half revolution 

and if we take shortest distance it will be its diameter  

So. Displacement becomes 5 cm