What is the angle of rotation shown in the diagram below?

its a straight line parallel to the time axis

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

a

step-by-step explanation:

6e14 is the answer.