(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Two children of masses 45 kg and 30 kg are playing on a teeter-totter of length 4.0m and mass 30.0kg, pivoted at its centre. The heavier child sits 1.75 m from the centre of the teeter-totter that is 0.50 m from the ground. a) What torque does the teeter-totter apply to each of its sides? With this knowledge, how could you simplify any further calculations.

2. Relevant equations

T=r x Fsin(theta)

3. The attempt at a solution

The example says:

T=rF sin (theta)

T=(1.0 m)(30.0 kg)(9.8 N/kg)

t-t 147 N·m

I don't understand where the one metre is coming from.

Can anyone help me?

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# Homework Help: Static Equilibrium-Balancing Forces and Torque

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