- #1
nishanth R
- 7
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Homework Statement
Two like parallel forces 20N and 30 N act at the ends A and B of a rod 1.5m long. The resultant of the forces will act at a point
1 90 cm from A
2 75 cm from B
3 20 cm from B
4 85 cm from A
Homework Equations
Torque=Force * Perpendicular distance
The Attempt at a Solution
In the solution for the problem, I see that the torque due to the forces are equated
F1(x)=F2(1.5-x)
and then x has been calculated.
I don't understand this approach. What is the point in equating torques? It has not been mentioned that the net torque on the rod is zero. Then how can we assume that the torques due to the forces are equal?