Question

The mechanical advantage of a system of pulleys is 3. How much force need to be applied to raise a load of 60kg through 50 cm?

Answer 1

Answer:

20kgf

Explanation:

Mechanical advantage:load / effort or force

3=60/force

Force= 60/3

= 20kgf

Answer 2

Given:

• Mechanical advantage = 3
• Load = 60 Kg
• Length = 50 cm

To Find:

• The force required to raise the load.

Solution:

The formula is given by,

Mechanical advantage = load/effort or force applied

Let "x" be the force applied.

⇒ M.A = Load/x

Rearranging the above equation in terms of "x".

⇒ x = Load/M.A → {equation 1}

On substituting the values in equation 1 we get,

⇒ x = 60/3 {dividing the terms}

⇒ x = 20 Kg

∴ The force applied to raise the load = 20 Kg.