Underground, underground.

It's going to be a downward slope, downward opening parabola.

Lower.

He reached down. He pulled a lever. And the chair sank down.

IT'S GOlNG TO GO A DlSTANCE OF h DOWNWARDS, AND OUR CONVENTlON IS, DOWN IS NEGATlVE

Then from the top to bottom?

Let your hair down.

Go back downstairs.

I'm acomin' down!

We knew that the parallel component of the force of gravity on that block was 49 N downwards, down the slope

The road dips suddenly.

5 N downwards.

Then from the bottom up.

The slope is now downwards sloping.

He did a horrible thing, condemned for all time to roll this rock up, it would roll back down, roll back up, roll back down.

And then, let's say we wanted to shift this equation down by two.

BUT ITS GOlNG TO TRAVEL THAT DlSTANCE DOWNWARDS

We saw the single slash for navigating one step down.

It's going to move down the string like that.

We have the current going down like this.

As you go down in this direction,

And then I'm going to scroll down.

Oh, you have to get much lower.

Strip her down! Strip her down naked!

Now we go down to the second row.

Gravity is going to start accelerating it downward.

The new B, you'd go three down to the left.

Remember the convention when we're dealing with the vertical dimension is, up is positive, down is negative

You notice that this line it slopes downwards.

I know this is a downwards sloping line.

like this, you reverse it. Zoe OK.

That's 98 times this quantity over here, downwards

Scale it down and let's say 0.5 times that.

Let's shift it down by 3.

But it's not sloping downward that fast.

You can put them down, essentially out of the way.

The final velocity is 100 meters per second down, and since we're saying that down is negative, and gravity is always pulling you down, we're going to say that our acceleration is equal to gravity, which is equal to minus 10 meters per second squared.

So here, all the cards are face down you agree?

BUT WE KNOW THAT OUR VELOClTY IS GOlNG TO BE DOWNWARDS HERE

It's going to collapse down, so it is going to do this.

It would be very dangerous if you fell down.

If you went down eight you would've showed up here.

I start here, palm down, you can follow.

Then you have to push it down again.

It can only go down from there.