(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Draw a free body diagram showing all the forces on the elastic band, and a free body diagram showing all the forces on the bag of coins

2. Relevant equations

F=-kx

F=mg

3. The attempt at a solution

I drew the forces on the elastic band as T = mg (m = mass of coins since the elastic band's mass isn't stated) upwards

and mg downwards

The forces I drew on the bag were F = kx upwards (the force of the elastic's stretch pulling proportionally upwards on the bag) and F = mg downwards (m = mass of coins)

If it were a rope attaching the bag to the ceiling I'd be ok but I'm a bit thrown off since it's an elastic band. Please let me know if this seems logical.

Thanks in advance for your help!

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# Free body diagram for a bag of coins suspended by an elastic band

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