MCQEasy1 mark
1
Choose the correct answers to the questions from the given options. (Do not copy the questions, write the correct answers only.)
The Velocity Ratio (VR) of a block and tackle system of two pulleys with the effort in the upward direction is: (a) 1 (b) 2 (c) 3 (d) 4
Topic: Block and tackle velocity ratio
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Answer
Exam answer
(c) 3.
Explanation
With two pulleys and the effort directed upward, three rope segments support the moving block; hence VR = 3.
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