Answers

2015-06-01T19:45:37+05:30
We know that 
velocity=displacement/time
speed=distance/time
here distance is given but displacement doesnt means distance=displacement
speed =distance/time
speed =200/5
 speed=40km/h=displacement
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2015-06-02T09:53:31+05:30
Distance=200km
time=5 h
speed =distance\time
speed=200\5=40km\h
velocity=displacement\time
but there is no displacement so displacement=distance
therefore velocity=40 km\h
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