An object cover a certain journey 2500km in the following way
(a) First 1000km with speed 80kmph.
(b) Next 800km with speed of 100kmph. With what should he cover the remaining distance so that the average speed for the entire journey is 60kmph.
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Answer:
8 m/s.
8 m/s.(200 meters) / (25 seconds) = 8 m/s. To express this in kilometers per second, let's express meters in kilometers and seconds in hours. There are 1000 meters in one kilometer, therefore 1/1000 kilometers in one meter.
8 m/s.(200 meters) / (25 seconds) = 8 m/s. To express this in kilometers per second, let's express meters in kilometers and seconds in hours. There are 1000 meters in one kilometer, therefore 1/1000 kilometers in one meter.Explanation:
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