上面嗰位啱唔晒。
Friction, f = k x normal reaction where k is coefficient of friction
假如張枱係水平嘅
f = kmg
如要轉盤上面啲嘢唔飛出嚟
向心力 < or = 摩擦力
mv2/r < or = kmg
v2/r < or = kg
所以,轉盤上面啲嘢會唔會飛出嚟同啲嘢嘅質量無關。
轉盤就不可能..
但上面的野食就有飛滑出來的可能
Circular Motion
centripetal force = fiction( ƒ)
ƒ = m v/r
if ƒ <m v/r
mass of the dish is too large /
velocity is too high/
distance from the centre is small