Waec Model Questions Vol1 2022 Agricultural Science Question 28
Practice objective / multiple choice question 28 from the 2022 Waec Model Questions Vol1 Agricultural Science examination.
A simple lever is used to lift a sack of grain. The lever is a horizontal beam 40 cm long with a fulcrum placed 12 cm from the load end (the load arm). The load arm therefore measures 12 cm and the effort arm 28 cm. A load of 80 N hangs vertically from the load end. The effort is applied at the effort end at an angle of 30° above the horizontal. What is the minimum magnitude of the effort force (in newtons) required to keep the lever in static equilibrium?
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About This Question
This is Waec Model Questions Vol1 2022 Agricultural Science Question 28. It is one of the objective questions from the 2022 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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