Since the brace shown must remain in position even when the magnitude of P is very small, a single safety spring is attached at D and E. The spring DE has a constant of 50 lb/in. and an unstretched length of 7 in. Knowing that l = 10 in. and that the magnitude of P is 800 lb, draw the free-body diagram(s) needed to determine the force Q required to release the brace.

BE 1500 – Fall 2016 HW 4 Due: 9/29/16 (1:30 P.M.) 1. Write a function file that determines the following sum (for all odd n from 1 to 11) using a for loop. The starting point, ending point, and increment should be input to the function file. 2n+2 y=Σ n−2 function [sum1]=HW5P1(a,b,c) sum1=0; for i=a:b:c sum1=sum1+(2^(i+2))/(i-2); end 2 points 0.25 for correct function header 0.25 for comments 0.5 for initializing sum 0.5 for correct for statement 0.5 for correct sum1 statement 2. The geometric mean of a set of number1 x througn x is defined as the nth root of the prod