Hello, soapes!

I have a pendulum 100cm long with a small weight at the end.

The pendulum is pushed back moving the weight 10cm.

How do I calculate the amount the pendulum has risen on its arc?

The pendulum is pivoted at .Code:O * /|\ /@| \ 100 / | \ / | \ / |C \ B * - - + - - * * |h * 10 * A

The weight is at rest at cm.

It is moved 10 cm to

Arc cm.. cm.

Let

We want:

We have:.

Then:.

Therefore:.

. . . . . . . .