Waec Model Questions Vol1 2017 Agricultural Science Question 24

Practice objective / multiple choice question 24 from the 2017 Waec Model Questions Vol1 Agricultural Science examination.

Waec Model Questions Vol1 2017 Agricultural Science Objective / Multiple Choice Medium Difficulty
Question 24 WAEC_MODEL_QUESTIONS_VOL1 • 2017 • AGRICULTURAL_SCIENCE • objective

The diagram shows a simple lever used to lift a heavy stone. The effort arm (distance from the fulcrum to the point where the effort is applied) is 0.8 m and the load arm (distance from the fulcrum to the centre of the stone) is 0.2 m. The stone weighs 200 N. Assuming an ideal (frictionless) lever, determine the minimum effort force required to lift the stone and state the mechanical advantage of the lever.

Answer Options

A. Effort = 40 N; Mechanical advantage = 5
B. Effort = 66.7 N; Mechanical advantage = 3
Correct Answer C. Effort = 50 N; Mechanical advantage = 4
D. Effort = 60 N; Mechanical advantage = 4
Correct Answer
C
Correct Option:
Effort = 50 N; Mechanical advantage = 4

About This Question

This is Waec Model Questions Vol1 2017 Agricultural Science Question 24. It is one of the objective questions from the 2017 Waec Model Questions Vol1 Agricultural Science examination.

Difficulty level: Medium .

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