Question

Iqbal and Peter carry a 60 kg bag of cement by means of 2.4m long pole at what distance from Iqbal must the bag be suspended so that he may carry 2/3 of the load neglecting the mass of the pole

Answer 1

Answer:

The bag should be suspended 0.8 m from Iqbal.

Explanation:

Let us consider that both are performing the same amount of work i.e.conservation of energy is taking place.

$W_1=W_2$      (1)

Where,

W₁=work done by Iqbal=F₁x₁

W₂=work done by Peter=F₂x₂

From the question we have,

Mass of cement bag=60kg

The length of the pole=2.4m

Let the distance of suspension of the bag from Iqbal be "x" and the distance of suspension of the bag from Peter be "2.4-x".

Now by using equation (1) we get;

$\frac{2}{3}\times 60\times g\times x=\frac{1}{3}\times 60\times g\times (2.4-x)$

$2x=2.4-x$

$3x=2.4$

$x=0.8m$

Hence, the bag should be suspended 0.8 m from Iqbal.

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