Which of the following actions will improve the efficiency of the pulley system?
PHYSICS
WAEC 2002
Which of the following actions will improve the efficiency of the pulley system?
- A. reducing the mass of the pulley
- B. increasing the friction force between the string and the pulley
- C. increasing the mass per unit length of the string of the pulley
- D. increasing the mass of the pulley
Correct Answer: A. reducing the mass of the pulley
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