A construction worker uses a board and log as a lever to lift a heavy rock. He applies a force of 20 N without the use of the lever, h

Question

A construction worker uses a board and log as a lever to lift a heavy rock. He applies a force of 20 N without the use
of the lever, however with the lever, he applies a force of 10 N. What is the mechanical advantage?

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Doris 3 years 2021-09-03T14:44:33+00:00 1 Answers 3 views 0

Answers ( )

  1. thienthi
    0
    2021-09-03T14:46:06+00:00
    Reply

    Answer:

    vz vc

    Explanation:

    v b

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