From a point on a straight road, Pablo and Kelsey ride bicycles in the same direction. Pablo rides at 8 mph and Kelsey rides at 10 mph. ?
From a point on a straight road, Pablo and Kelsey ride bicycles in the same direction. Pablo rides at 8 mph and Kelsey rides at 10 mph. In how many hours will they be 17 mi apart?
More Questions From This User See All
Answers & Comments
:-
Relative speed is 2 mph
Assume Pablo at rest and Kelsey at 2 mph
t = 17/2 = 8•5 hours
After 8 h 30 min will be 17 miles apart
K gains 2 miles separation from P each hour.
In 8.5 hours he is 17 miles ahead
speed differential is 2 MPH
17 mi / 2 mi/hr = 8.5 hr