Gce Model Questions Vol1 2019 Physics Question 30

Practice objective / multiple choice question 30 from the 2019 Gce Model Questions Vol1 Physics examination.

Gce Model Questions Vol1 2019 Physics Objective / Multiple Choice Medium Difficulty
Question 30 GCE_MODEL_QUESTIONS_VOL1 • 2019 • PHYSICS • objective

A block‑and‑tackle system is used to lift a load of \(200\ \text{N}\). The arrangement provides four supporting rope sections, giving an ideal mechanical advantage of 4. However each pulley in the system operates with an efficiency of \(90\%\). Determine the magnitude of the input force required to lift the load, assuming the efficiencies of the pulleys multiply. Give your answer in newtons (N) to three significant figures.

Answer Options

A. 55.6
B. 50.0
C. 68.2
Correct Answer D. 76.2
Correct Answer
D
Correct Option:
76.2

About This Question

This is Gce Model Questions Vol1 2019 Physics Question 30. It is one of the objective questions from the 2019 Gce Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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