Neco 2022 Agricultural Science Question 5
Practice objective / multiple choice question 5 from the 2022 Neco Agricultural Science examination.
The draft force required to pull a plough through loamy soil is given by \( D = a + b v^{2} \) (newtons), where \( a = 150 \) N, \( b = 20 \) N·s\(^{2}\) m\(^{-2}\) and \( v \) is the tractor speed in metres per second. The tractor can deliver a maximum draw‑bar power of 12 kW. Determine the greatest speed (in m\,s\(^{-1}\)) at which the tractor can operate without exceeding the power limit. Give your answer to two decimal places.
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About This Question
This is Neco 2022 Agricultural Science Question 5. It is one of the objective questions from the 2022 Neco Agricultural Science examination.
Difficulty level: Medium .
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