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Which of the following examples describes mechanical efficiency? A. greasing a surface helps reduce friction OB. a longer lever
Question
Which of the following examples describes mechanical efficiency?
A. greasing a surface helps reduce friction
OB. a longer lever helps lift more weight
O C. a fixed pulley changes the direction you
pull
D. pushing the object down a slope is less
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Physics
3 years
2021-08-24T22:02:01+00:00
2021-08-24T22:02:01+00:00 2 Answers
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Answer:
Hello
I think the first one is correct.
Explanation:
A……………is the answer