how will you measure the average speed of walking if you do not have a stopwatch for your watch Wheeler second hand but I have a device which give a single after every 5 second
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Even if u have a device which transmit signals, you need to know the speed . Bcoz it can give signal at 3km/hr or 1km/hr or any other speed at the rate of 1 per 5 second. So u need to specify ur speed
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