Gce Model Questions Vol1 2025 Physics Question 30

Practice objective / multiple choice question 30 from the 2025 Gce Model Questions Vol1 Physics examination.

Gce Model Questions Vol1 2025 Physics Objective / Multiple Choice Medium Difficulty
Question 30 GCE_MODEL_QUESTIONS_VOL1 • 2025 • PHYSICS • objective

A block‑and‑tackle system consists of two fixed pulleys and two movable pulleys, giving an ideal mechanical advantage of \(4\). A load of \(800\ \text{N}\) is lifted. The input force applied to the rope is measured as \(250\ \text{N}\), and the rope is pulled through a distance of \(2.0\ \text{m}\). (a) Calculate the actual mechanical advantage of the system. (b) Determine the efficiency of the system (as a percentage). (c) Find the work done on the load.

Answer Options

A. Actual MA = 3.5, efficiency = 85 %, work on load = 500 J
B. Actual MA = 3.0, efficiency = 75 %, work on load = 350 J
C. Actual MA = 4.0, efficiency = 70 %, work on load = 300 J
Correct Answer D. Actual MA = 3.2, efficiency = 80 %, work on load = 400 J
Correct Answer
D
Correct Option:
Actual MA = 3.2, efficiency = 80 %, work on load = 400 J

About This Question

This is Gce Model Questions Vol1 2025 Physics Question 30. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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