I've looked some equations up on google- but they aren't what I'm looking for.
My teacher told me drag is just the velocity squared.... is he right?
2007-02-17 23:12:48 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Drag is a mixture of friction forces due to air resistance and friction in the moving parts (if any) and the surface the object is moving over. V squared is rubbish. mv^2 is momentum that must be overcome to start the object moving, then the other forces kick in.
2007-02-17 23:18:51 · answer #1 · answered by Del Piero 10 7 · 0⤊ 0⤋
Drag force = (1/2)CpAv.v
where C=drag co-efficient
p=density of air
A=surface area of object
v=velocity of the object
Your teacher is right.
2007-02-18 08:31:40 · answer #2 · answered by Prabhanjan 2 · 0⤊ 0⤋
Drag is viscous force and is equals to
F=kv^2,where v=velocity
2007-02-18 08:29:09 · answer #3 · answered by yan 2 · 0⤊ 0⤋
Alan M what the hell.. momentum is mv not mv^2, are you thinking of kinetic energy -
1/2 mv^2
2007-02-18 11:07:35 · answer #4 · answered by hobgoblin 2 · 0⤊ 0⤋