Simone builds a simple spinning engine by inserting straws through holes in a plastic cup. She then suspends the cup from a metal pole using string. After Simone pours water into the cup, the water rushes out of the straws in the direction that the straws are pointed and the cup spins, as shown in the picture below.

Which of the following is true about the force acting on the cup and causing it to spin?
A.
It is equal in magnitude and in the same direction as the force pushing the water out of the straws.
B.
It is smaller in magnitude but opposite in direction to the force pushing the water out of the straws.
C.
It is equal in magnitude but opposite in direction to the force pushing the water out of the straws.
D.
It is smaller in magnitude and in the same direction as the force pushing the water out of the straws.

I've been working on this for a few days and i just don't understand, it's due in a few hours. you. the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α. part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part b suppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i.e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case. part c now try a numerical problem. what is the direction of the vector w = < -1, 6 > ?