[ankit sehgal]

Originally Posted by madnikhil

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sry wrong post..

what is wrong in this..

[hb1411]

Hey,
I didnt understud y u hv takn trains startng at 5,6, 7, 8, 9 a.m in ur ans cud u throw sum light on d same...

[workoholic]

Two cars race around a circular track at constant speeds starting from the same point. If they travel in opposite directions, then they meet every 35 seconds. If they travel in the same direction, then they meet every 3 minutes and 30 seconds. How long (in seconds) would the faster car take to complete one round of the circular track?

please tell me how to solve these kind of problems.....it would be of great help if someone can tell all the fundas associated with problems of these kind(circular motion)

[ranamitabh]

Originally Posted by workoholic

Two cars race around a circular track at constant speeds starting from the same point. If they travel in opposite directions, then they meet every 35 seconds. If they travel in the same direction, then they meet every 3 minutes and 30 seconds. How long (in seconds) would the faster car take to complete one round of the circular track?

please tell me how to solve these kind of problems.....it would be of great help if someone can tell all the fundas associated with problems of these kind(circular motion)

is the answer 1 min.... i.e. faster car will take 1 min. to complete the circular track...if yes then tell me plz..if the ans will be rite then i'll post the solution

[ashish13dec]

Originally Posted by workoholic

Two cars race around a circular track at constant speeds starting from the same point. If they travel in opposite directions, then they meet every 35 seconds. If they travel in the same direction, then they meet every 3 minutes and 30 seconds. How long (in seconds) would the faster car take to complete one round of the circular track?

please tell me how to solve these kind of problems.....it would be of great help if someone can tell all the fundas associated with problems of these kind(circular motion)

Let distance covered in one revolution be k.i.e circumference of circle.
Assume speed of the faster be x and taht of slower car be y
35x + 35y = k
210x – 210y = k
so,60x = k.
So, the faster car will take 60 seconds to complete round.

[workoholic]

A bird starts flying from a place O towards B via A. There is no wind resistance from O to A. But there is uniform wind resistance between A and B. To travel from O to B the bird takes 12 minutes, whereas to travel from B to O via A, the bird takes 14 minutes. Had there been wind resistance between O and A also (which equals that between A and B), the bird would have taken only 11 minutes to travel from O to B. O, A and B are collinear.If there was the same wind resistance between O and A as between A and B, what would be the time taken by the bird to travel from B to O?