Question

In Figure drawn, a tackle is used to lift the load by applying the force in the downward direction. What is the mechanical advantage of the system?

• A. 6
• B. 8
• C. 4
• D. 5

Answer 1

Answer: (D)

5

Here it is $5$ pulley system hence total load on tackle(movable part) will be equals to "$5T$"
and on block(fixed part) total effort will be "$T$"
hence mechanical advantage(M.E)=$\frac{load}{effort}$=$\frac{5T}{T}$ =5