How can a jet of water be powerful enough to cut through steel?
In: 63
From Newton, F = mA.
F is force. That is what is hitting the steel.
M is mass. Water is heavy. Often it is mixed with something else. Not really important for this part.
A is acceleration, or in this case deacceleration. Say the water is going 1500kph. It hits the steel and immediately goes to 0 (within microseconds), or even bounces off and going negative. That is directly proportional to the force generated. The faster the jet, the more the force. Ex. Say it goes from 1500km/s to -100km/s (bounces off), that is a speed change of 1600 kps, and that that happens in one microsecond.
1500000m/s / .000001s……
That is a big number.
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