Two boys a and b are at two diametrically opposite points on a circle. at one instant the two start running on the circle; a anticlockwise with constant speed v and b clockwise with constant speed 2v. in 2 minutes, they pass each other for the first time. how much later will they pass each other for the second time?
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Heya User.
`A` moves with speed `v`. `B` moves with speed `2v`.
As both are moving in opposite directions, their relative speed is `v+2v=3v`.
Well, now, they meet first after 2 minutes. In this time, they have both covered a total distance that they have covered is half the circumference.
Now, to meet again, they must together cover the full circumference distance again. Since their relative speed is constant, it must now take twice as much time as it did before.
So, they will meet again after `4 minutes`.
Hope it helps.
Credits --> @Purvaparmar1405
`A` moves with speed `v`. `B` moves with speed `2v`.
As both are moving in opposite directions, their relative speed is `v+2v=3v`.
Well, now, they meet first after 2 minutes. In this time, they have both covered a total distance that they have covered is half the circumference.
Now, to meet again, they must together cover the full circumference distance again. Since their relative speed is constant, it must now take twice as much time as it did before.
So, they will meet again after `4 minutes`.
Hope it helps.
Credits --> @Purvaparmar1405
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