Question

11. A particle is moving in a circular path of radius r. The displacement after completing two circles would be:(a)Zero (b)pie r (c) 2r (d) 2pie r​

Answer 1

$\huge \sf \blue{Answer}$

c) 2r

2r is the correct answer !

$\large{ \textsf{ \textbf \red{ Explanation}}}$

After half a circle, the particle will be diametrically opposite to its origin Hence, displacement is equal to diameter.

Answer 2

Answer:

Option c) 2r

Displacement after half circle = AB=OA + OB Hence, the displacement after half circle is 2r.