Neco 2021 Agricultural Science Question 42

Practice objective / multiple choice question 42 from the 2021 Neco Agricultural Science examination.

Neco 2021 Agricultural Science Objective / Multiple Choice Medium Difficulty

Question 42 NECO • 2021 • AGRICULTURAL_SCIENCE • objective

A hand‑operated seed drill requires a pulling force of 150 N to operate at a speed of 0.5 m s\(^{-1}\). The farmer attaches a simple pulley system consisting of one fixed pulley and one movable pulley, giving an ideal mechanical advantage of 2. Because of friction, the system loses 10\% of the input force. Assuming the drill speed is directly proportional to the net force transmitted after the pulley, what pulling force must the farmer apply to maintain the original speed?

Correct Answer A. 83.3 N (approximately)

B. 78.9 N (approximately)

C. 90 N (approximately)

D. 75 N (approximately)

Correct Answer

Correct Option:

83.3 N (approximately)

This is Neco 2021 Agricultural Science Question 42. It is one of the objective questions from the 2021 Neco Agricultural Science examination.

Difficulty level: Medium .

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