Physics, 26.12.2019 12:31 heartprague
The fulcrum of a first-class lever divides its 9.0 m arm into two sections—a 6.0 m arm and a 3.0 m arm. you place a rock weighing 98.1 n on the 3.0 m end. how much force do you need to exert on the 6.0 end to balance the lever?
a)49 n
b)200 n
c)880 n
d)1,800 n
Answers: 1
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The fulcrum of a first-class lever divides its 9.0 m arm into two sections—a 6.0 m arm and a 3.0 m a...
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