Assertion (A): Two cyclists move on two separate roads angled at \( 60^{\circ} \) to each other ...

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Assertion (A): Two cyclists move on two separate roads angled at \( 60^{\circ} \) to each other at the rate of \( 5 \mathrm{~m} / \mathrm{s} \) and \( 10 \mathrm{~m} / \mathrm{s} \) respectively. The rate which they are separating from each other is \( 5 \sqrt{3} \mathrm{~m} / \mathrm{s} \).
Reason (R): Using sine rule.
(A) Both A and R are true and R is the correct explanation of A.br(B) Both A and R are true, but R is not the correct explanation of A.
(C) A is true, but R is false.
(D) A is false, but R is true.
(E) Both A and R are false.
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