Neco Model Questions Vol1 2022 Agricultural Science Question 42
Practice objective / multiple choice question 42 from the 2022 Neco Model Questions Vol1 Agricultural Science examination.
The diagram shows a hand‑operated seed drill lever. The lever pivots at O. The seed hopper is attached \(0.3\) m from O, the planting plate is \(0.9\) m from O, and the operator applies a downward force \(F\) at the far end R which is \(1.2\) m from O. The soil resistance is \(150\) N per cm of depth per cm of plate width. The required planting depth is \(2\) cm and the plate width is \(10\) cm. Assuming negligible friction at the pivot, determine the minimum force \(F\) (in newtons) the operator must apply.
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About This Question
This is Neco Model Questions Vol1 2022 Agricultural Science Question 42. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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