Categories > Motion in A Straight Line > uniform-motion > Two boys are standing at the ends A and B of a ground where \[AB = a\]. The boy at B starts running in a direction perpendicular to AB with velocity \[{v_1}.\] The boy at A starts running simultaneously with velocity \[v\] and catches the other boy in a time t, where t is

Motion in A Straight Line

Question: Two boys are standing at the ends A and B of a ground where \[AB = a\]. The boy at B starts running in a direction perpendicular to AB with velocity \[{v_1}.\] The boy at A starts running simultaneously with velocity \[v\] and catches the other boy in a time t, where t is


1) \[a/\sqrt {{v^2} + v_1^2} \]
2) \[\sqrt {{a^2}/({v^2} - v_1^2)} \]
3) \[a/(v - {v_1})\]
4) \[a/(v + {v_1})\]
Solution: Explanation: Explaination
uniform-motion

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