asiriel wrote:
Two racecar drivers, A and B , are driving around a circular track. If A is 200m behind B and both drivers drive at their respective constant rates, how long, in sec, will it take for A to catch up to B?
(1) The circumference of the trace is 1400m.
(2) B is driving 25 m per min faster than A.
The correct answer is B. Just want to double check.
I suspect that it is a typo, and statement 2 should be: A is 25 m/min faster than B. Otherwise, we do need the circumference of the track (to know how many meters is B behind A) as it will be equivalent to B catching up A then, correct me if I am wrong.
Thanks for your clarification in advance.
(1) The circumference of the trace is 1400m.
(2) B is driving 25 m per min faster than A.
The correct answer is B. Just want to double check.
I suspect that it is a typo, and statement 2 should be: A is 25 m/min faster than B. Otherwise, we do need the circumference of the track (to know how many meters is B behind A) as it will be equivalent to B catching up A then, correct me if I am wrong.
Thanks for your clarification in advance.
dude question is correct and QA is wriong the anser is C : if the circumference is known and the speed of is 25 more then as they are travelling on a circle b will come again to overtake him .........
use relative velocity concept keep a as constant and now only b will move with 25m/s fast to cover ther res to the rest of 1200 mts