SOLUTION: a car travelling at 80kmph, how long would would it take the car to travel 400 meters?

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Question 704916: a car travelling at 80kmph, how long would would it take the car to travel 400 meters?

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+d+=+r%2At+
You want to work with just meters
( meters ) = ( meters/hr )*( hrs )
( hrs ) = ( meters ) / ( meters / hr )
------------------------------
Also:
( km/hr )*( m/km) = (m/hr)
------------------------
+80%2A%281000%2F1%29+=+80000+ m/hr
and
+400+=+80000%2At+
+t+=+400%2F80000+
+t+=+4%2F800+
+t+=+1%2F200+
+t+=+.005+ hrs
( sec/hr )*( hrs ) = (sec)
+3600%2A.005+=+18+
It takes the car 18 sec to travel 400 m