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

208516-q

  • [JEE MAIN 2022]
  • A

    $42$

  • B

    $47$

  • C

    $19$

  • D

    $4$

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  • [JEE MAIN 2024]