Neco 2020 Physics Question 41
Practice objective / multiple choice question 41 from the 2020 Neco Physics examination.
A block‑and‑tackle system consists of two movable pulleys and one fixed pulley. The rope passes over the fixed pulley, then under the two movable pulleys attached to a load of weight \(500\ \text{N}\), and the free end is pulled vertically upward. The fixed pulley is not ideal; the coefficient of friction between the rope and the pulley is \(\mu = 0.20\) and the rope makes a wrap angle of \(\theta = \pi\ \text{rad}\) around the pulley. Assuming the rope is massless and the pulleys are frictionless, determine the minimum effort force required to lift the load.
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About This Question
This is Neco 2020 Physics Question 41. It is one of the objective questions from the 2020 Neco Physics examination.
Difficulty level: Medium .
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