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A long distance runner started on a course running at an average speed of 6mph. half an hour later, a second runner began the same course at an average speed of 7mph. how long after the second runner started will the second runner overtake the first runner?

Answer :

9 hours long after the second runner started will the second runner overtake the first runner.

What does it mean to do speed?

  • Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object's movement.
  • Put another way, speed is a scalar value, while velocity is a vector.

Runner I = 6 mph

Runner II = 7 mph

Difference in time= 90 minutes

Train A will have covered 9 miles before Runner II starts

catch up distance= 9 miles

catch up speed = 7-6 mph

catch up speed = 1 mph

Catchup time = catchup distance/catch up speed

catch up time= 9/1

catch up time= 9 hours

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