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Re: [Phys-l] [PTSOS] anvil and sledgehammer inertia demo

Two I like:
Riding an elevator while standing on an analog bathroom scale.

Placing a board on two "frictionless" carts and attach the board to a force
probe. The drag a block at a "constant" speed with another force probe.

Ken Fox

On Wed, Sep 29, 2010 at 3:15 PM, Stefan Jeglinski <> wrote:

The really important demo is to show that a moving object
with balanced forces remains in constant motion.

I substantially agree. What are your favorite demos of this, suitable
for a classroom?

Stefan Jeglinski

Forum for Physics Educators