Question

A body moves in a circle of radius 2r what is the distance coveredand the displacement of the body after complete 2 rounds

Answer 1

Answer:

8πr and zero

Explanation:

total distance travelled will be equal to the total circumference of the circle traversed.

so,

circumference of the circle = C = 2πR = 2π(2r) = 4πr

so, after two complete rounds, the total distance travelled will be = 2 x 4πr = 8πr

as the initial and final position of the particle are same, the net displacement will be zero

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