Studies of gymnasts show that their high rate of injuries to the Achilles tendon is due to tensions in the tendon that typically reach 9.0 times body weight. That force is provided by a pair of muscles, each exerting a force at 29∘ to the vertical, with their horizontal components opposite.
For a 54-kg gymnast, find the force in each of these muscles.
I imagine it has something to do with a free body diagram.
The Attempt at a Solution
I don't know what forces I should include, if I should break up force into x and y components.
Any help is appreciated.