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Joseph jogs from 1928 the other end B of a straight 300 metre road in 2 minutes 30 seconds and then turns around and jokes on demeter back to the point see in another one minute water Joseph's average speed and velocity in jogging from A to B B from B to C |
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Answer» y = dispacement / timeSpeed = distance / TIMEA) when he jogs from A to B on a STRAIGHT ROAD,displacement = distance = 300mtime = 2 minutes 30 SECONDS = 150 svelocity = 300/150 = 2 m/sspeed = 300/150 = 2m/sb)when he jogs from A to B and turns back to C,displacement = 300-100 = 200mdistance = 300+100 = 400mtime = 3 minute 30 second = 210 svelocity = 200/210 = 20/21 m/sspeed = 400/210 = 40/21 m/s |
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