Questions - 4.3 Calculate the unknown forces X and Y for the

balanced beam shown.

1.0 m+

2.5 m

te)

X

400N

Complete Question

The complete question is shown on the first uploaded image

The value of   and    

Explanation:

Considering the diagram,

   Taking moment about the pivot , we have

=>        

Generally given that the bar is at equilibrium then the upward forces is equal to the down ward force

So

=>    

=>        

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =