Waec Model Questions Vol1 2019 Physics Question 42

Practice objective / multiple choice question 42 from the 2019 Waec Model Questions Vol1 Physics examination.

Waec Model Questions Vol1 2019 Physics Objective / Multiple Choice Medium Difficulty
Question 42 WAEC_MODEL_QUESTIONS_VOL1 • 2019 • PHYSICS • objective

A simple lever is pivoted at a point 0.30 m from one end and 0.90 m from the other end. A downward effort of 50 N is applied at the short end. (a) What is the maximum load that can be lifted at the long end? (b) If the lever rotates through 30° while lifting the load, calculate the work done by the effort and the vertical rise of the load.

Answer Options

A. Maximum load = 180 N; work = 9.20 J; rise = 0.15 m
Correct Answer B. Maximum load = 150 N; work = 7.86 J; rise = 0.12 m
C. Maximum load = 120 N; work = 6.50 J; rise = 0.10 m
D. Maximum load = 130 N; work = 8.30 J; rise = 0.11 m
Correct Answer
B
Correct Option:
Maximum load = 150 N; work = 7.86 J; rise = 0.12 m

About This Question

This is Waec Model Questions Vol1 2019 Physics Question 42. It is one of the objective questions from the 2019 Waec Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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