A hall has the dimensions $10 m \times 12 m \times 14 m$ . A fly starting at one corner ends at a diametrically opposite corner . What is the magnitude of its displacement

17 m

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26 m

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36 m

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20 m

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Solution

The correct option is D $20 m$
Answer
CP = $\sqrt{(10)^{2} + ((12)^{2} + (4)^{2})}$
$- \sqrt{100 + 110 + 186}$
$= \sqrt{340 + 100}$
$= \sqrt{440} = 2 \sqrt{110}$

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A hall has the dimensions 10m×12m×14m . A fly starting at one corner ends at a diametrically opposite corner . What is the magnitude of its displacement

The correct option is D 20mAnswerCP = √(10)2+((12)2+(4)2)−√100+110+186=√340+100=√440=2√110

A hall has the dimensions $10 m \times 12 m \times 14 m$ . A fly starting at one corner ends at a diametrically opposite corner . What is the magnitude of its displacement

The correct option is D $20 m$
Answer
CP = $\sqrt{(10)^{2} + ((12)^{2} + (4)^{2})}$
$- \sqrt{100 + 110 + 186}$
$= \sqrt{340 + 100}$
$= \sqrt{440} = 2 \sqrt{110}$