Question

15.The Mechanical Advantage of a machine is used for load of 90kgf is 3. The effort is

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Answer 1

Answer:

Here we have a 3:1 mechanical advantage. First one end of the rope is attached directly to the load, this is then passed around an anchored pulley (pulley B) and returns back to the load where it is passed through pulley A which has been fixed to the load.

Answer 2

Answer:

The value of effort is 30 kgf.

Explanation:

Given,

The Mechanical Advantage of a machine is used for load of 90kgf is 3.

To find: The effort

Solution:

Mechanical advantage is defined as the ratio of load to effort.

or, M.A = load / effort

here, M.A = 3 , load = 90 kgf

Substituting the values,

3 = 90 / effort

or, effort = 90 / 3

or, effort = 30 kgf

Therefore, The value of effort is 30 kgf.