Gce Model Questions Vol1 2020 Physics Question 1

Practice objective / multiple choice question 1 from the 2020 Gce Model Questions Vol1 Physics examination.

Gce Model Questions Vol1 2020 Physics Objective / Multiple Choice Medium Difficulty
Question 1 GCE_MODEL_QUESTIONS_VOL1 • 2020 • PHYSICS • objective

A block‑and‑tackle system consists of one fixed pulley and one movable pulley. An effort of \(120\ \text{N}\) is applied vertically downward, moving the rope through a distance of \(4.0\ \text{m}\). As a result the load is lifted vertically upward by \(1.0\ \text{m}\). The load has a weight of \(350\ \text{N}\). Determine the ideal mechanical advantage (IMA), the actual mechanical advantage (AMA) and the efficiency of the system (as a percentage).

Answer Options

A. IMA = 4, AMA = 3.00, efficiency = 80.0%
Correct Answer B. IMA = 4, AMA = 2.92, efficiency = 72.9%
C. IMA = 3, AMA = 2.50, efficiency = 62.5%
D. IMA = 5, AMA = 3.10, efficiency = 78.0%
Correct Answer
B
Correct Option:
IMA = 4, AMA = 2.92, efficiency = 72.9%

About This Question

This is Gce Model Questions Vol1 2020 Physics Question 1. It is one of the objective questions from the 2020 Gce Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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