ASSUME THAT THE LARGEST STONS OF MASS M THAT CAN BE MOVED BY FLOWING WATER IN RIVER DEPENDS UPON VELOCITY OF FLOW V, THE DESITY D AND THE ACCELERATION DUE TO GRAVITY g .WHEN VELOCITY IS 10 m/s LARGEST MASS MOVED BY FLOW IS 320 KG ,THEN CALCULATE THE LARGEST MASS THAT CAN BE MOVED BY FLOW WHEN VELOCITY IS 5m/s