Determine the magnitude of the internal moment at point J when a = 90. Please enter your answer to one decimal point and include the unit. Please enter your answer in the format xx.xx, for example, 12.1 kNmm or 13.2 lbft. a = 205 mm, b = 390 mm, c = 165 mm, d = 199 mm, e = 317 mm and F = 1.8 kN F KN B A a mm e mm b mm D d mm c mm