F3-4. The block has a mass of 5 kg and rests on the smoot plane. Determine the unstretched length of the spring. k = 200 N/m 00000 0.3 m 3 c/w 10 45° 0.4 m din F3-4 3-5. If the mass of cylinder C is 40 kg, determin ass of cylinder A in order to hold the assembly osition shown