- #1
Karol
- 1,380
- 22
Homework Statement
A beam of 12[kN] is on a smooth floor on one side and on a rough edge on the other.
The total length of the beam is 10[m].
What is the reaction on the edge.
Homework Equations
Moments (torque): F1L1=F2L2
The Attempt at a Solution
I drew the forces. the reaction on the floor is vertical and also on the edge since there aren't horizontal forces.
Moments around point A:
$$12[kN]\cdot 5\cdot \cos 30^0=R\cdot\frac{4[m]}{\tan 30^0}\rightarrow R=7.5[kN]$$
In the book it's 6.5, i think it's a mistake