A 5.0Kg stone is sinking in water at a constant speed of 5.0m/s what is the upward force of water on the stone?
ebaines
Feb 16, 2010, 07:40 AM
Remember that F = ma. If an object falls at a constant rate, then the acceleration = 0. Hence the force upward on the stone (due to resistance of the water) is equal to the force downward (due to gravity).