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Sagot :
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
Learn more about speed
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