Time,Speed and Distance

koolfriend4u · 09-09-2004, 01:50 AM

Let x = time in hours for 2nd car to overtake 1st,
then 60x + 50 = 70x

x = 5

anupam2285 · 09-09-2004, 07:31 AM

guyz try posting some good problems from the mocks/sims u have given. it'll help people who are not writing these exams.
i'll try posting some today evening.
cheers,
ANUPAM

koolfriend4u · 09-09-2004, 09:52 AM

i appreciate ur work anupam. even am also thinking of d same. pls do it.

newguy · 10-09-2004, 09:38 PM

Quote:

Originally Posted by koolfriend4u

i appreciate ur work anupam. even am also thinking of d same. pls do it.

I have some questions...I need a day or two..I will post them by Tuesday...dunno how useful they'll be

rockguy2020 · **Re: Time,Speed and Distance -** 30-08-2008, 12:07 AM

Quote:

Originally Posted by koolfriend4u

Two cars are headed for Phoenix. One is 50 miles ahead of the other on the same road. The one in front is traveling at 60 mph while the second car is traveling at 70 mph. How long in hours will it take for the second car to overtake the first?

the relative speed of first car w.r.t second car is Vrel=70-60=10 mph
time=dis/sp=50/10= 5 hours