Question

A particle is moving in a circular path of radius r. The displacement after half a circle would be:

(a) Zero

(b) πr

(c) 2r

(d) 2πr

Answer 1

Answer:

(b) πr

Explanation:

displacement after half a circle = total circumference / 2

displacement after half a circle = 2πr / 2          

displacement after half a circle = πr

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