Homework Help: physics

Posted by faisal on Saturday, December 17, 2011 at 8:41am.

A car travels from city a to city b at a constant speed of 60 km/h.A bus leaves city a 1h after the car and catches it as it enters city b.the distance betwen ehe cities is 240 km.what is the speed of the bus{assumed to be constant] during its journey

physics - drwls, Saturday, December 17, 2011 at 11:39am
The car takes 240/60 = 4 hours to make the trip. To catch it at the destination, leaving 1 hours late, the bus must take 3 hours.

The bus' speed must be 240/3 = 80 km/h

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