Question 516061
Car speed	70	mph					
Patrolman speed	100	mph					
Car speed		10:00					
Patrolman speed		10:30					
Car speed	will have covered	1.17	miles	before 	Patrolman speeds up		
catch up distance=		1.17	miles				
catch up speed =		100	-70	mph			
catch up speed =		30	mph				
Catchup time = catchup distance/catch up speed							
catch up time=		1.17	/	30			
catch up time=		0.04	hours			2.33	minutes

catchup speed = v-70
catchup distance = 1.17 miles
time taken = 1.17/(v-70) *60 minutes