- #1
Schaus
- 118
- 5
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
τcw=τccw
The Attempt at a Solution
I don't have much practice with torque questions especially not ones that are hanging.
Στ= 0 = (T2)(1.5m) - (355N)(0.35m) - (50.5N)(0.75m) - (300N)(1.05m)
Στ = 0 = (T2)(1.5m) - 124.25Nm - 37.875Nm - 135Nm
(T2)(1.5m) = 477.125Nm → divide both sides by 1.5m
318N = T2
I'm trying to figure out how to get the tension on T1 now.
Last edited: