Waec Model Questions Vol1 2021 Agricultural Science Question 49
Practice objective / multiple choice question 49 from the 2021 Waec Model Questions Vol1 Agricultural Science examination.
A farmer uses a simple lever to lift a sack of grain weighing 120 kg. The fulcrum is placed 0.25 m from the sack (load arm) and 0.75 m from the point where the farmer applies the effort (effort arm). Ignoring friction, what minimum upward force must the farmer exert? (Take g = 9.8 m s⁻².)
Answer Options
About This Question
This is Waec Model Questions Vol1 2021 Agricultural Science Question 49. It is one of the objective questions from the 2021 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.