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Homework Statement
The olympic commissioners decided to buy and sell gold, hoping to set a new profit record. They conducted all their business in an elevator. They bought and sold at the same price per ounce. An archaic unit of force, which measured with a verticle spring scale scale suspended from the ceiling. They always bought their gold when the elevator had a downward acceleration of 2 m/s^2 and always sold when the acceleration was 2.5 m/s^2 upward. Evaluate their percentage profit based on their buying profit. - means a loss.
The Attempt at a Solution
Alright so i know the following things:
a of buying: 2 m/s^2
a of selling : 2.5 m/s^2
and there is something to do with springs... but how would i start off?