Waec Model Questions Vol1 2017 Agricultural Science Question 27
Practice objective / multiple choice question 27 from the 2017 Waec Model Questions Vol1 Agricultural Science examination.
A hand‑plough has a pivot point. The distance from the pivot to the handle where the farmer applies force is 1.2 m, and the distance from the pivot to the ploughshare is 0.3 m. The soil exerts a vertical resistance of 150 N on the ploughshare, which is inclined at 30° to the horizontal. (a) Calculate the minimum horizontal force the farmer must apply at the handle to overcome the soil resistance. (b) If the farmer can only exert a horizontal force of 80 N, what is the greatest vertical soil resistance that can be overcome?
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About This Question
This is Waec Model Questions Vol1 2017 Agricultural Science Question 27. It is one of the objective questions from the 2017 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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