A person moved from \( A \) to \( B \) on a circular path as shown in figure. If the distance tr...

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A person moved from \( A \) to \( B \) on a circular path as shown in figure. If the distance travelled by him is \( 60 \mathrm{~m} \), then the magnitude of displacement would be:
(Given \( \left.\cos 135^{\circ}=-0.7\right) \)
(a) \( 42 \mathrm{~m} \)
(b) \( 47 \mathrm{~m} \)
(c) \( 19 \mathrm{~m} \)
(d) \( 40 \mathrm{~m} \)
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