Neco Model Questions Vol1 2021 Physics Question 43

Practice objective / multiple choice question 43 from the 2021 Neco Model Questions Vol1 Physics examination.

Neco Model Questions Vol1 2021 Physics Objective / Multiple Choice Medium Difficulty
Question 43 NECO_MODEL_QUESTIONS_VOL1 • 2021 • PHYSICS • objective

A class‑lever is used as a simple machine. The effort is applied 0.80 m from the fulcrum, making an angle of \(30^{\circ}\) below the horizontal. The load (a weight of \(200\,\text{N}\)) hangs vertically 0.20 m from the fulcrum. The magnitude of the effort force is \(120\,\text{N}\).\ Determine the effective mechanical advantage (EMA), the ideal mechanical advantage (IMA), and the ratio \(\dfrac{\text{EMA}}{\text{IMA}}\). Give EMA and the ratio to two decimal places.

Answer Options

A. EMA = 2.50, EMA/IMA = 10.00
Correct Answer B. EMA = 3.33, EMA/IMA = 13.33
C. EMA = 4.00, EMA/IMA = 15.00
D. EMA = 3.00, EMA/IMA = 12.00
Correct Answer
B
Correct Option:
EMA = 3.33, EMA/IMA = 13.33

About This Question

This is Neco Model Questions Vol1 2021 Physics Question 43. It is one of the objective questions from the 2021 Neco Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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