Question

If a block and tackle system with convenient direction has 3 movable pulleys, then its velocity ratio.

a. Is either 6 or 7
b. Should be 6
c. Should be 7
d. Is 3​

Answer 1

Answer:

Velocity ratio = Number of pulleys

V.R= 3

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Answer 2

Answer:

D) Is 3​

Explanation:

• The distance travelled by any part of a machine in comparison to the distance travelled by the driving part at the same time.

• The pulley is attached to the object, and one end of the rope is attached to a fixed place while the other end of the rope is free.

• A velocity ratio exists in a block and tackle pulley system. 3.

• The velocity ratio is defined as the diameter of the driven pulley divided by the diameter of the driving pulley.