Answer:
the point at which Emma is required to sit at in order to make the seesaw exactly balanced on its pivot = 1.28 m
Explanation:
From the question; the criteria and condition to balance the system on the pivot in order to be at equilibrium is if :
m₁r₁ =m₂r₂
Given that :
Let the mass of Noah be m₁ = 20 kg
Let the mass of Emma be m₂ = 26 kg
The distance x₁ of Noah be r₁ = 1.6 m away from the pivot point.
The distance x₂ of Emma be r₂ = ???
Making r₂ the subject of the formula from the above equation; we have:
r₂ = [tex]\frac{m_1*r_1}{m_2}[/tex]
r₂ = [tex]\frac{20*1.6}{25}[/tex]
r₂ = 1.28 m
Thus, the point at which Emma is required to sit at in order to make the seesaw exactly balanced on its pivot = 1.28 m
