Alever has a mechanical advantage of 1.6. if you apply a force of 330 n to the lever, how much force does the lever apply to the object you are lifting?

Use the formula for mechanical advantage of simple machines. As for a lever, use formula below
mechanical advantage = force output/force input
where
Force input = 330 N
mechanical advantage = 1.6
substitute all the given data, we will get Force output
Force output = 528 N

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