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 v₁ . The boy at A starts running simultaneously with velocity v and catches the other in time t

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 v₁ . The boy at A starts running simultaneously with velocity v and catches the other in time t , where t is:

Quantrex Academy · Accepted Answer

Correct answer: D. a^2 v^2-v₁^2

If boy (A ) catches boy (B ) in time (t ), ( aligned & ( vt )^2= ( v ₁ t )^2+ a ^2 & t ^2= a ^2 v ^2- v ₁^2 & t = a v ^2- v ₁^2 aligned )

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 v₁ . The boy at A starts running simultaneously with velocity v and catches the other in time t , where t is:

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