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melomori [17]
3 years ago
8

A force of 13 N is applied to the handle of a screwdriver being used to pry off the lid of a

Biology
1 answer:
Elena-2011 [213]3 years ago
7 0
<h3><u>Answer;</u></h3>

Efficiency = 61.54%

<h3><u>Explanation</u>;</h3>

Efficiency is given by the Formula;

Efficiency = work output/work input × 100%

Work input = Input force × distance moved by the input force

                  = 13 N × 0,25

                  =  3.25 Joules

Work output or work done by the screwdriver is 2 Joules

Therefore;

Efficiency = 2/3.25 ×100%

                <u>=  61.54%</u>

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