Question

A person moves $20m$ towards north then $30m$ towards east and finally $30\sqrt{2}m$ south-west. His displacement is:-

• A. $10\sqrt{5}m,{\tan }^{-1}\left(2\right)S\text{of}W$
• B. $10\sqrt{5}m,{\tan }^{-1}\left(2\right)W\text{of}S$
• C. $20m,S-W$
• D. $10m,S$

Answer 1

The correct option is D $10m,S$

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