- #1
Ronaldo95163
- 77
- 1
Homework Statement
Figure 5 below shows an approximation of the system of forces acting on the human forearm. The weight of the forearm is 25N and acts 15cm from the elbow of a girl lifting a dumbbell of weight 50N
Find the
1)Force, F, exerted on the human forearm by the muscle in the upper arm
2)Forces acting at the point, E of the elbow
3)Tension if theta is 45 degrees
Homework Equations
sum of ACW = sum of CW
sum of upward forces = sum of downward forces
The Attempt at a Solution
My Attempt is in the pictures below