12. Questions 13 and 14 are related to the situation shown. F = 10 N and the length of the rod is 2.0 m. Which equation is easier to use to calculate the torque caused by the force F about the pivot indicated (left end ofthe rod}? A. T = Fir B. \"r = Fri O ____s__ 13. Use the equation you identified in question 13 to calculate the torque caused by the force F about the pivot indicated {left end of the rod). DO NOT use Fr Sin 6! You will get the wrong answer. Express your answer in Nm and input the number only. If your answer is negative, input the negative sign. 14. Suppose that now a second force F2 = 20 N is applied as shown at a distance of 0.4 m from the pivot. F is still 10 N and the length of the rod is 0 still 2.0 m. What is the net torque in this situation? Express your answer in Nm and input the number only. If your answer is negative, input the negative sign. _____D__ 60 Hint: Don't forget about the signs! For each force, first, think about whether it creates positive or negative torque