Apitcher is in 85° of abduction, holding a 1.4 n baseball at point c, 65 cm from the joint axis at point o • the center of gravity of his arm is 25 cm from the joint axis of shoulder abduction at point o • the weight of the arm w is 0.06 of the pitcher’s weight of 100 n • deltoids muscles are at an angle θ of 15° with respect to the humerus and insert 15 cm from the joint axis at point a • determine the force applied by the deltoid muscles and the joint reaction force at the shoulder joint and its orientation β

I attached a Diagram for this problem.

We star considering the system is in equlibrium, so

Fm makes with vertical

Fm makes 70 with vertical

Applying summatory in X we have,

We know that W is equal to

Substituting,

For the second part we know that the reaction force Fj on deltoid Muscle is equal to Fm, We can assume also that

You need to be more specific.  i really don't know what a "motion map" is.you can draw a graph of an object's position, distance, displacement, speed,velocity, or acceleration versus time, or you can draw a graph of the object's x-position versus its y-position and not give any information about time at all.if the graph presents position or displacement against time,  then constant velocity is a straight line . . i.e. a line that has  constant slope.if the graph shows speed against time, then constant velocityis a horizontal piece of line.if the graph shows acceleration against time, then constant  velocity is a piece of line that lies on the x-axis . . it's value is zero.