More on springs

Instructions:
A horizontal spring is connected to a mass by a string that extends over a light frictionless pulley.

In order to attach mass/blocks to the spring:

1. Move the mouse button over the blocks
2. The color of those blocks above the mouse pointer will turn black.
3. Click the mouse button to attach those black blocks to the spring.
4. The mass of those attached blocks will be shown near another spring (to the right).

The spring will relax to its equilibrium position.

You can detach mass/blocks from the spring:

1. Move the mouse button within the region of the attached blocks.
2. The color of those blocks below the mouse pointer will turn black.
3. Click the left mouse button to dettach those black blocks to the spring.
4. If you click the right mouse button and drag it up/down, then the force exerted on the spring will not balance the weight of the mass.

The spring will start to oscillate and exhibit simple harmonic oscillation (SHM).

Press the mouse button to suspend the animation, click it again to resume.

Press the Stop button in order to reset the spring back to equilibrium position.

Press the Reset button in order to reset parameters to default values.