Waec Model Questions Vol1 2025 Agricultural Science Question 30
Practice objective / multiple choice question 30 from the 2025 Waec Model Questions Vol1 Agricultural Science examination.
The diagram shows a class‑I lever used to lift a load. Point B is the fulcrum, point A is where the effort is applied and point C is where the load hangs. The distance AB (effort arm) is 0.40 m and BC (load arm) is 0.10 m. The load weight is 120 N. Because of friction at the fulcrum the mechanical efficiency of the lever is 90 %. What minimum effort force must be applied at A to raise the load? Give your answer in newtons to two decimal places.
Answer Options
About This Question
This is Waec Model Questions Vol1 2025 Agricultural Science Question 30. It is one of the objective questions from the 2025 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.