If a man goes (10 ,m) toward north and (20, m) toward east,... | Physics | SolveeIt

Question

If a man goes $10 \,m$ toward north and $20\, m$ toward east, then his displacement is

$22.5\, m$

$25\, m$

$25.5\, m$

$30\, m$

Answer

$22.5\, m$

Explanation

Solution

Displacement $=AC=\sqrt{\left(AB\right)^{2}+\left(BC\right)^{2}}$ $=\sqrt{\left(10\,m\right)^{2}+\left(20\,m\right)^{2}}$ $=\sqrt{100+400} \approx 22.5\,m$

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