Waec Model Questions Vol1 2022 Physics Question 6
Practice essay / theory question 6 from the 2022 Waec Model Questions Vol1 Physics examination. This question covers machines, simple machines, mechanical advantage, efficiency .
The diagram shows a compound machine that consists of a fixed fulcrum lever AB of total length 1.20 m. The fulcrum O divides the lever so that the effort is applied at point A, 0.80 m from O, and the load is attached at point B, 0.40 m from O. From B a light, frictionless rope passes upward over a fixed pulley attached to the ceiling and then hangs vertically to a load of mass 80 kg. The pulley provides a mechanical advantage of 4 (the tension in the rope is one‑quarter of the effort force). All strings and the lever are assumed massless and the pulley is smooth. Answer the following questions.
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This is Waec Model Questions Vol1 2022 Physics Question 6. It is one of the essay questions from the 2022 Waec Model Questions Vol1 Physics examination.
The question covers machines, simple machines, mechanical advantage, efficiency .
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