Answer
Graph is attached below :
Work Step by Step
As θ is increased in parts (a) and (b) the force provides less and less of a positive acceleration, whereas in part (c) the force provides less and less of a deceleration (as its θ value increases).
The highest curve (which slowly decreases from 1.4 to 1) is the curve for part (b) , the other decreasing curve (starting at 1 and ending at 0) is for part (a).
The rising curve is for part (c) is equal to 1 where θ = 90$^{\circ}$.
Graph is attached below :
