Question

explain torque please

Answer 1

@UnknownRandom you want to take this one? I think I'm gonna get ready for bed. I'll stick around for a few more minutes.

Answer 2

I have not covered this yet. I will give it my best shot though. I will need a minute or two.

Answer 3

it's ok then, I can do it

Answer 4

This might be handy to read.

Answer 5

ok, @silverxx you know what force is right? F=ma.
Well torque is the rotational analog of force and is
\[\large\tau=r X F\]
but you want to be careful about that "X", it is not multiplication, it means cross product

Answer 6

it could be also, the force (the perpendicular distance)

Answer 7

@UnknownRandom its okay!! =) Thank you so much

Answer 8

\[F= {dp \over dt}\]
where
\[p=mv\]

Answer 9

\[F={d(mv) \over dt}\]
mass is constant (until you get to relativity but that's in modern physics)
\[F={d(mv) \over dt}=m{dv\over dt}=ma\]

Answer 10

well if u need a non mathematical def
Torque basically tells you how much ROTATION a force can cause

simple example.. take door

u can put a force on the edge and cause HUGE rotation (easier to ROTATE)
but u put that same force near the hinge.. and god.. u can barely rotate it

so u see in either cases, the force was the same, but how much Rotation it caused was different, ergo, the torque in either case was different (was huge in the first case near the edge of the door, where the handle is usually placed ;-) )

Answer 11

ow thank you @Mashy thank you

Answer 12

This is the translational form. Now torque like I said is the rotational analog so that is
\[\tau=\frac {dL} {dt}={d(mrv \sin \phi) \over dt}={d(r Xp) \over dt} = r XF \]

Answer 13

ah.. its quite complicated but i'll get use to this =)

Answer 14

your welcome.. glad i could help.. and for formal definition.. you have these experts here ;-)!

Answer 15

hmm, I like @Mashy 's explanation better

Answer 16

i'm more of a math nut

Answer 17

@roadjester thank you so much!! now, i need to answer problems related to torque..