- #1

Schaus

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## Homework Statement

A 355.0N boy and a 300.0.0N girl sit on a 50.5N porch swing that is 1.5m long. The swing is supported by a chain on each end. What is the tension in each chain when the boy sits .35m from one end and the girl sits .45m from the other? ( ans: boys side = 390 N, girls side = 320 N)

## Homework Equations

τ

_{cw}=τ

_{ccw}

## The Attempt at a Solution

I don't have much practice with torque questions especially not ones that are hanging.

Στ= 0 = (T

_{2})(1.5m) - (355N)(0.35m) - (50.5N)(0.75m) - (300N)(1.05m)

Στ = 0 = (T

_{2})(1.5m) - 124.25Nm - 37.875Nm - 135Nm

(T

_{2})(1.5m) = 477.125Nm → divide both sides by 1.5m

318N = T

_{2}

I'm trying to figure out how to get the tension on T

_{1}now.

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