Question

a particle is moving in a circle of diameter 5 m. calculate the dist covered and the displacement when it completes 3 revolutions

Answer 1

Hi.

Here is the answer----

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Given ⇒
Diameter of the Circular Path = 5 m.

We know, Circumference of the Circular path will be the Distance covered by the Body in one Round.

Thus,Circumference of the  Circular Path =  2 × [tex]/pie[tex] ×  r                                    = 110/7 m

In third Round total Distance covered = 3 × 110/7                                                           = 330/7


Thus, Distance is 330/7 m during two rounds.

Displacement = 0

Reason ⇒ Body returns to the same point after the second Round, thus displacement will be zero.