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: Option A
Explanation
No official explanation is available for this question at this time. Please check contributions posted by others below. If you can provide an explanation to help other student learn, please click here
Contributions ({{ comment_count }})
Please wait...
Modal title
Report
Block User
{{ feedback_modal_data.title }}