What is the ideal mechanical advantage of a lift that allows you raise a 90.0-kg refrigerator with 80.0 N of force?

Physics

1 answer:

Sholpan [36]3 years ago

5 0

Answer:

Explanation:

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Explanation:

We can solve this problem by using the law of conservation of momentum. In fact, for an isolated system (= no external force), the total momentum must be conserved before and after the collision. So we can write:

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