Waec Model Questions Vol1 2019 Physics Question 38
Practice objective / multiple choice question 38 from the 2019 Waec Model Questions Vol1 Physics examination.
A block‑and‑tackle system has three supporting rope sections (ideal mechanical advantage 3). When a load of 900 N is lifted, the effort measured on the rope is 350 N. (a) Determine the efficiency of the system as a percentage. (b) Using the same system, what effort (in newtons, rounded to the nearest whole number) is required to lift a load of 1200 N, assuming the efficiency remains unchanged?
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About This Question
This is Waec Model Questions Vol1 2019 Physics Question 38. It is one of the objective questions from the 2019 Waec Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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