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Tipping Block on Incline
# 1J11.15

Description: This is a very vivid example of where the center of mass of an object acts, and what happens when it moves outside the base of the object.

Instructions: A bob is suspended from a string connected to the block at it's center of mass. Raise the inclined plane until the block tips over. Observe that the block does not tip over until the center of mass exceeds the base of the block, illustrated when the string and mass clear the bottom edge of the block.

Parts: Block of wood
incline plane with sandpaper
Bob with bright string

Purchased/Built: built

Setup Time: none

Quant. in Demo Room: 1

Demo References
Freier and Anderson Mp-14 A block is placed on an incline and the incline is raised until the block tips.
The Physics Teacher TPT 16(7),506 A very clever modification of the leaning tower of Pisa demonstration.

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