Hi,
Could you please help me with the following question ?
Al & Jim are travelling in opposite directions around a circular track. Al is going twice as fast as Jim. The time interval between their meetings as they pass each other is 30 sec. Al then doubles his speed and Jim reduces his speed by one-half. What will be the time interval between their meetings after they have changed their speeds ? If Al's initial speed was 60m/s what is the radius of the track ?
Thank You

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