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If a 1.0m crowbar is placed uner a 143 kg rock at a point 20.0cm from the end of the bar, what is the IMA of the crowbar?
12 years ago

Answers

drwls
IMA = ideal mechanical advantage
= (hand-to-fulcrum distance)/(load-to-fulcrum distance) = 80/20 = 4

The rock weight is not needed.
12 years ago

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