Neco Model Questions Vol1 2022 Physics Question 43
Practice objective / multiple choice question 43 from the 2022 Neco Model Questions Vol1 Physics examination.
A block‑and‑tackle system consists of two fixed pulleys and one movable pulley. The rope passes over the fixed pulleys, under the movable pulley and back to the effort. The coefficient of friction between the rope and each pulley is \(\mu = 0.15\) and the rope wraps each pulley through an angle of \(180^{\circ}\). A load of \(200\;\text{N}\) is to be lifted. (a) Determine the ideal mechanical advantage of the arrangement. (b) Taking friction into account using the Euler‑Eytelwein relation, calculate the magnitude of the input force required to lift the load. Give your answer in newtons (to three significant figures).
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About This Question
This is Neco Model Questions Vol1 2022 Physics Question 43. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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