Igcse Model Questions Vol1 2017 Physics Question 5
Practice objective / multiple choice question 5 from the 2017 Igcse Model Questions Vol1 Physics examination.
A block of mass \(10\ \text{kg}\) is lifted vertically through a height of \(0.50\ \text{m}\) by a rope that passes over an ideal fixed pulley attached to a lever system. The lever provides a mechanical advantage of \(4:1\) (the input moves four times the distance of the output). The overall efficiency of the arrangement is \(75\%\). What magnitude of input force must be applied to raise the block at constant speed? Give your answer in newtons to two significant figures.
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About This Question
This is Igcse Model Questions Vol1 2017 Physics Question 5. It is one of the objective questions from the 2017 Igcse Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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