To obtain the same resistance force, a greater force must be exerted in a machine of lower efficiency than in a machine of higher effi

Question

To obtain the same resistance force, a greater force must be exerted in a machine of lower efficiency than in a machine
of higher efficiency
True
False

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Gia Bảo 3 years 2021-08-26T10:18:37+00:00 1 Answers 8 views 0

Answers ( )

  1. Ladonna
    0
    2021-08-26T10:19:58+00:00
    Reply

    Answer: True.

    Explanation:

    A resistance force is also known as friction. And the efficiency of a machine is affected by friction.

    A machine of lower efficiency has higher magnitude of friction than a machine of higher efficiency.

    Therefore, To obtain the same resistance force, a greater force must be exerted in a machine of lower efficiency than in a machine of higher efficiency. This is true

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