Gce Model Questions Vol1 2019 Physics Question 49

Practice objective / multiple choice question 49 from the 2019 Gce Model Questions Vol1 Physics examination.

Gce Model Questions Vol1 2019 Physics Objective / Multiple Choice Medium Difficulty
Question 49 GCE_MODEL_QUESTIONS_VOL1 • 2019 • PHYSICS • objective

A simple pulley arrangement consists of a fixed pulley and a movable pulley attached to a load of weight \(200\) N. The rope is mass‑less and frictionless. The system lifts the load with constant speed. The free end of the rope (the effort) moves a distance of \(1.5\) m while the load rises only \(0.5\) m. The measured effort force is \(60\) N. Determine (a) the ideal mechanical advantage, (b) the actual mechanical advantage, and (c) the efficiency of the arrangement.

Answer Options

A. (a) IMA = 2.5 (≈5/2). (b) AMA = 2. (c) Efficiency ≈ 80 %.
B. (a) IMA = 4.0 (≈12/3). (b) AMA = 4. (c) Efficiency ≈ 75 %.
C. (a) IMA = 5.0 (≈15/3). (b) AMA = 5. (c) Efficiency ≈ 95 %.
Correct Answer D. (a) IMA = 3.33 (≈10/3). (b) AMA = 3. (c) Efficiency ≈ 90 %.
Correct Answer
D
Correct Option:
(a) IMA = 3.33 (≈10/3). (b) AMA = 3. (c) Efficiency ≈ 90 %.

About This Question

This is Gce Model Questions Vol1 2019 Physics Question 49. It is one of the objective questions from the 2019 Gce Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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