Question

A block and tackle system of pulleys has velocity ratio 4.

1. Draw a labelled diagram of the system indicating clearly, the direction of the load and the effort.
2. What is the value of the mechanical advantage of the given pulley system if it an ideal pulley system?

Answer 1

(a)

(b) For an ideal pulley system, mechanical advantage (M.A.) is equal to the velocity ratio (V.R.).

Given V.R. = 4

∴ M. A. = 4