A plank of length l = 2.45 m is to be balanced on a see-saw. On one side of the plank hangs a mass m₁ = 5.16 kg, and from the other side of the plank hangs a massless, frictionless pulley. From this pulley there then hangs a mass m2 = 24.6 kg on one side and from the other side hangs a mass m3 = 6.66 kg. See the figure below for this setup. What is the distance l₁ from the see-saw's pivot that m₁ must hang in order for this plank to be stationary after being released from rest? m₁ l m3 m₂

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Chapter1: Units, Trigonometry. And Vectors
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A plank of length l = 2.45 m is to be balanced on a see-saw. On one side of the plank hangs a mass m₁ = 5.16 kg, and from the
other side of the plank hangs a massless, frictionless pulley. From this pulley there then hangs a mass m2 = 24.6 kg on one side
and from the other side hangs a mass m3 = 6.66 kg. See the figure below for this setup. What is the distance l₁ from the see-saw's
pivot that m₁ must hang in order for this plank to be stationary after being released from rest?
m₁
l
m3
m₂
Transcribed Image Text:A plank of length l = 2.45 m is to be balanced on a see-saw. On one side of the plank hangs a mass m₁ = 5.16 kg, and from the other side of the plank hangs a massless, frictionless pulley. From this pulley there then hangs a mass m2 = 24.6 kg on one side and from the other side hangs a mass m3 = 6.66 kg. See the figure below for this setup. What is the distance l₁ from the see-saw's pivot that m₁ must hang in order for this plank to be stationary after being released from rest? m₁ l m3 m₂
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