Neco Model Questions Vol1 2023 Physics Question 14

Practice objective / multiple choice question 14 from the 2023 Neco Model Questions Vol1 Physics examination.

Neco Model Questions Vol1 2023 Physics Objective / Multiple Choice Medium Difficulty
Question 14 NECO_MODEL_QUESTIONS_VOL1 • 2023 • PHYSICS • objective

A block‑and‑tackle system has four supporting rope segments (ideal mechanical advantage 4). A load of \(500\ \text{N}\) is lifted by applying an input force of \(150\ \text{N}\). (a) Calculate the efficiency of the system as a percentage. (b) If the input force moves at a constant speed of \(0.20\ \text{m s}^{-1}\), find the power output in watts.

Answer Options

A. 90.0% , 20 W
Correct Answer B. 83.3% , 25 W
C. 66.7% , 40 W
D. 75.0% , 30 W
Correct Answer
B
Correct Option:
83.3% , 25 W

About This Question

This is Neco Model Questions Vol1 2023 Physics Question 14. It is one of the objective questions from the 2023 Neco Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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