Advance math

Part B Two blocks A and B have a weight of 9 lb and 5 1b , respectively. They are resting on the incline for which the coefficients of static friction are /LA = 0.16 and /LB = 0.23. Determine is the friction force under the block A at this angle. Determine the angle 0 which will cause motion of one of the blocks. What is the friction force under each of the Express your answer to three significant figures and Include the appropriate units. blocks when this occurs? The spring has a stiffness of k = 2 1b / ft and is originally unstretched. (Figure 1) 0 0 ? FA = 1.74 1b Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Figure