Waec Model Questions Vol1 2019 Physics Question 7
Practice objective / multiple choice question 7 from the 2019 Waec Model Questions Vol1 Physics examination.
A 5.0 kg block is lifted by a system consisting of a fixed pulley and a movable pulley (ideal, massless and frictionless). The system works with an overall efficiency of 80 %. What minimum pulling force must be applied to raise the block at constant speed?
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About This Question
This is Waec Model Questions Vol1 2019 Physics Question 7. It is one of the objective questions from the 2019 Waec Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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