Waec Model Questions Vol1 2019 Agricultural Science Question 30
Practice objective / multiple choice question 30 from the 2019 Waec Model Questions Vol1 Agricultural Science examination.
A hand‑operated seed drill uses a class‑1 lever. The distance from the pivot to the effort point is 0.8 m and the distance from the pivot to the load (seed gate) is 0.2 m. Because of friction, only 90 % of the theoretical output force is actually delivered to the load. The farmer applies a force of 150 N at the effort point. The seed gate requires a minimum force of 600 N to open. (a) Does the lever, accounting for friction, supply enough force? (b) If not, how much additional effort (in newtons) must the farmer apply?
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About This Question
This is Waec Model Questions Vol1 2019 Agricultural Science Question 30. It is one of the objective questions from the 2019 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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