Waec 2021 Physics Question 15

Practice objective / multiple choice question 15 from the 2021 Waec Physics examination.

Waec 2021 Physics Objective / Multiple Choice 2 Difficulty
Question 15 WAEC • 2021 • PHYSICS • objective

The handle of a screw jack is 35 cm long and the pitch of the screw is 0.5 cm. What force must be applied at the end of the handle to lift a load of \( 2000 N \) if the efficiency of the jack is \( 30 \% ?\left[\pi=\frac{22}{7}\right] \)

Answer Options

Correct Answer A. 152.0 N
B. 132.0 \( N \)
C. \( 15.2 N \)
D. \( 440.0 N \)
Correct Answer
A
Correct Option:
152.0 N

About This Question

This is Waec 2021 Physics Question 15. It is one of the objective questions from the 2021 Waec Physics examination.

Difficulty level: 2 .

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