A meter rule is pivoted at its center. A glass block is hanged from one end and the rule is balanced horizontally by hanging masses of 100 g and 50 g at 60 cm and 80 cm marks respectively, the mass of the glass block. would be 50 gram
Mechanical advantage is defined as a measure of the ratio of output force to input force in a system, It is used to analyze the forces in simple machines like levers and pulleys.
Mechanical advantage = output force(load) /input force (effort)
As given a meter rule is pivoted at its center. A glass block is hanged from one end and the rule is balanced horizontally by hanging masses of 100 g and 50 g at 60 cm and 80 cm marks respectively.
In this situation, the axle act as the pivot point around both the load and effort balanced by their moment of force.
By Balancing the moment of forces on both sides
mass of the glass block × (distance from the center of pivot )= ( mass of all the hanging masses) ×( distance from the center of the pivot )
mass of the glass ×50 = 100×10 + 50×30
mass of the glass = 2500/50
=50 gram
Thus, the mass of the glass block. would be 50 gram
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