A cyclist starts from the point P of a circular ground of radius 2...

A cyclist starts from the point

P

of a circular ground of radius

2 \mathrm{~km}

and travels along its circumference to the point

\mathrm{S}

. The displacement of a cyclist is: A cyclist starts from the point P of a circular ground of radius 2 ~km and travels along its circumference to the point

A cyclist starts from the point P of a circular ground of radius 2 ~km and travels along its circumference to the point

Options

A $\sqrt{8} \mathrm{~km}$
B $8 \mathrm{~km}$
C $6 \mathrm{~km}$
D $4 \mathrm{~km}$

Correct answer

A. $\sqrt{8} \mathrm{~km}$

Step-by-step solution

\therefore

Displacement

=\mathrm{R} \sqrt{2}=2 \sqrt{2}=\sqrt{8} \mathrm{~km}

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