Question 13 10 pts A block with mass m attached to two strings as shown in the figure is under equilibrium. The force notations are given: tension on left string is T1; and tension on right string is T2 a) [10%] How many total forces onto to the block? b) [45%] Write the equation when block is under equilibrium in the horizontal (x) direction: o c) [45%] Write the equation when block is under equilibrium in the vertical (y) direction