Consider a bar, of length 4.5 m, shown in the figure, is constrained to rotate about its left end. In addition to the force exerted at the left end responsible for this constraint, three forces are acting on the bar that generate torques. The magnitudes of the first two forces are 19 N and 21 N, and the first force is acting on the end of the bar at an angle of 56 as shown.

(5%) Problem 13: Consider a bar, of length 4.5 m, shown in the gure, is constrained to rotate about [5-] its left end. In addition to the force exerted at the left end responsible for this constraint, three forces are acting on the bar that generate torques. The magnitudes of the rst two forces are 19 N and 21 N, and the rst force is acting on the end of the bar at an angle of 56 as shown. $3 33% Part (a) What is the torque, in newton-meters, due to F1 on this bar relative to the left end? Use a coordinate system with positive directed out of the screen . Grade Summary 11 = I Deductions Potential 100% Submissions Attempts remaining: _ ( per attempt) detailed view 1 2 sin() cotano tanhO cotanhO Degrees O Radians I Submit I Hint l Igive up! Hints: deduction per hinti Hints remaining: _ Feedback: deduction per feedback. a; 33% Part (b) What is the torque, in newton-meters, due to F 2 on this bar relative to the left end, if this force is acting at the midpoint of the bar? Use a coordinate system with positive directed out of the screen. A 33% Part (c) What is the magnitude of the force F 3, in newtons, if the force is a distance 0.65 In from the left end and the bar is not rotating