A spring-mass system consists of a mass weighing 100 N (assume g=10 m/s-) and a spring with a stiffness of 4000 N/m. The mass is subjected to resonance by a harmonic force E. (t) = 200sin wt N. The resonance frequency is: O 20 Hz O 20 radian/s O 6.324 Hz O 6.324 radian/s

Part A The pole is subjected to the forc F which has components F = 1.4 kN and F₂ = 1.05 kN. If 3 = 84°, determine the magnitude of Fy. Express your answer with the appropriate units. F₂ = Submit Part B O μA Request Answer Determine the magnitude of F. Express your answer with the appropriate units. НА F= Value Unit Submit Request Answer Units ? ? XB F F

Find the resultant force. What angle does it make with East ? 25 N due North ; 10 N North-East ; 15 N due East ; 20 N 30° East of South ; 30 N 60° South of West. These are the given in the problem and in the illustration, please give the answer based on these given.  Give the proper solution.