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Mechanics

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1F 20.10 - String Breaker

Demonstrates: Inertia.
Description: An iron ball is suspended vertically by monofilament and a rod is suspended from the iron ball. If the rod is given a quick jerk the bottom string breaks. If the rod is pulled slowly the upper string breaks.

1F 20.20 - Smash Your Hand

Demonstrates: Inertia of rest.
Description: A lead brick covers a flat hand, the brick is struck by a hammer.

1F 20.31 - Table Cloth Pull

Demonstrates: Inertia of rest.
Description: A piece of cloth is yanked out from under various objects resting onto top without moving the placement.

1F 20.32 - Hammer and Colored Disks

Demonstrates: Inertia.
Description: 7 colored 2" thick disks and a hammer.

1F 30.10 - Persistence of Motion

Demonstrates: Inertia of motion. A body remains in constant motion until another force acts on it.
Description: Air car on track.