A man walks 20,m at an angle 60^{circ} north of east. ........,m far towards east has he travalled.

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3-2.Motion in Plane

easy

A man walks $20\,m$ at an angle $60^{\circ}$ north of east. $........\,m$ far towards east has he travalled.

A$10$

B$20$

C$20 \sqrt{3}$

D$10 \sqrt{3}$

Solution

(a)
$20 \cos 60^{\circ}=10\,m$

Standard 11

Physics

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