Neco Model Questions Vol1 2023 Physics Question 6

Practice objective / multiple choice question 6 from the 2023 Neco Model Questions Vol1 Physics examination.

Neco Model Questions Vol1 2023 Physics Objective / Multiple Choice Medium Difficulty
Question 6 NECO_MODEL_QUESTIONS_VOL1 • 2023 • PHYSICS • objective

A compound pulley system has a mechanical advantage of 2 (the effort rope moves twice the distance moved by the load). When a load of 500 N is lifted, the effort required is measured to be 300 N. (i) Determine the efficiency of the system. (ii) If the load is increased to 800 N, what effort force is required to lift it with the same system?

Answer Options

A. Efficiency = 90.00 %; Effort for 800 N load = 444 N
B. Efficiency = 66.67 %; Effort for 800 N load = 600 N
Correct Answer C. Efficiency = 83.33 %; Effort for 800 N load = 480 N
D. Efficiency = 75.00 %; Effort for 800 N load = 533 N
Correct Answer
C
Correct Option:
Efficiency = 83.33 %; Effort for 800 N load = 480 N

About This Question

This is Neco Model Questions Vol1 2023 Physics Question 6. It is one of the objective questions from the 2023 Neco Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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