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Can someone please help me with the following question on torque (specifically, I am confused how to take into account the mass of the plank)? A teeter totter is made of a uniform plank of mass 20kg and length 8m. A girl of mass 30kg is positioned at one end and a boy of mass 45kg is positioned at the opposite end. How far from the girl is the fulcrum of the teeter totter located when it is in balance?
 one year ago
 one year ago
Can someone please help me with the following question on torque (specifically, I am confused how to take into account the mass of the plank)? A teeter totter is made of a uniform plank of mass 20kg and length 8m. A girl of mass 30kg is positioned at one end and a boy of mass 45kg is positioned at the opposite end. How far from the girl is the fulcrum of the teeter totter located when it is in balance?
 one year ago
 one year ago

This Question is Closed

henpenBest ResponseYou've already chosen the best response.1
Why use torque when you can use moments?
 one year ago

henpenBest ResponseYou've already chosen the best response.1
dw:1352922625600:dwTreat the log as if its mass were concentrated at its centre
 one year ago
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