Friction

So the coefficient of friction tells us

I'll do a video on why sometimes a coefficient of static friction can be different than the coefficient of kinetic friction

The force of friction here completely offsetting the force of gravity parallel to the surface is 49 N

(There is also the force of friction.)

So we can say this generally coefficient of kinetic friction is less than or equal to the coefficient of static friction

So this is the force that really overcome friction and this over here will be equal to the force of friction

I'm in a hurry. You're not in that much of a hurry.

Mouse Wheel

Steering wheel?

No hurry.

No rush.

There is some friction between these two

you could figure out this coefficient of kinetic friction

And remember coefficient of friction are unitless

We call it the coefficient of static friction because this deals with the ratio of the force of friction relative to the normal force

This guy got 2 years for car theft. Move it, bust the fucker!

It's a toothed wheel.

Where's the drive?

Take the wheel.

God's speed.

Here, take the wheel.

You never see a situation where the coefficient of static friction is lower than the coefficient of kinetic friction but you do see situations where the coefficient of kinetic friction is lower than the coefficient of static friction that once something is moving for some reason we'll theorize why that might be for some reason friction has a little less potent than when something is stationary

We call this the coefficient of static friction

And as you can imagine, this is the force of friction

This right over here is the force of friction

So the coefficient of kinetic friction, we'll write it as the Greek letter mu with a little k here for kinetic where it's a kind of moving friction

She cleaned her room in a hurry.

Kuwaiti Democracy in Action

Mouse wheel scrolls by

Handle mouse wheel events

The wheels of history have been turning.

When you're turning the handle...

It's Lincoln here, advancing them.

We're in a hurry. Sorry. Hey!

and there's no hurry now.

There's no hurry, my dear.

Oh, I can't bear to be kept waiting.

Hey, hey, stay on that wheel.

You're in a hurry?

I bet he has a moped.

You're in a rush today.

But we're going to focus on the region labeled red here and it's the interface between the dynamic scaffolding and the chromosomes.

My pushing is completely balanced by the force of friction.

So what is the force of friction in this case?