why dont the coffee beans just get pushed out of the way when the blade just begins to push on them?
Please explain
2007-10-16 22:25:26 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Physics
The blades move faster than the coffee beans can get out of the way. Also they break up as they encounter other bean particles at great speeds.
Mathematically inertia has everything to do with that
F=ma
Force F applied moves an object of mass m with acceleration a. If the force is too small an object will not even budge however if the force is too great an object will break up.
2007-10-16 22:29:10 · answer #1 · answered by Edward 7 · 0⤊ 0⤋
hello. good intiuition. basically you see the concept of inertia play here. Imagine yourself in the jar : as the blade tende to strike the coffee beans the beans' inertia thes to resist any change in their position and state of motion. but the blow is rather jolting and cannot be described by the everyday notion of pushing or pulling etc. Rather u may better understand it as an IMPULSE which acts on the beans and rupture the molecular bonds and lattices, before the force of strike can travel to the other end of the bean. Thus I and U can enjoy tne finely ground beans....... Thenks to IMPULSE. Goodbye
2007-10-16 22:34:06 · answer #2 · answered by AmJ 2 · 0⤊ 0⤋
The blade are too fast for the beans to get out of their way. Also other beans obstruct this from happening.
2016-05-23 03:14:16 · answer #3 · answered by cari 3 · 0⤊ 0⤋
the force of impact breaks the bean into pieces and those pieces get broken up some more until you get a fine grind
2007-10-16 22:29:19 · answer #4 · answered by Spinnah 3 · 0⤊ 0⤋