blaz3

when a fire hose is hook up to a water supple and the water is turn on the it frequently takes a firefighter to control the hose. why does a fire hose "recoil" when the water is turned on?

suppose you are sitting on a boat that is motion-less on the water, what happens when someone nearby tosses a watermelon, assuming you catch it? explain this according to the law of conservation of momentum

how can a racing bicycle have the same linear momentum as a pick-up truck?