3 years ago

Thomas needs to move an 80 kg rock, but cannot lift it. He decides to use a

Physics

1 answer:

ArbitrLikvidat [17]3 years ago

5 0

Answer:

Explanation:

The weight of the rock is W = mg = (80 kg) (10 m/s²) = 800 N.

The mechanical advantage is therefore 800 N / 200 N = 4.

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