Please solve 5A and B 4. A block lies on a horizontal frictionless surface and is connected to a nearby vertical wall by a spring with springconstant 50 /m. Initially, the spring is at its relaxed length and the block is stationary at position x 0. Then, anapplied force with a constant magnitude of 3.0 N pulls the block in the positive x- direction, stretching the spring until%3Dthe block stops. When the stopping point is reached, what are:a) the position of the block,b) the work that has been done on the block by the applied force, andc) the work done on the block by the spring force?During the block's displacement, what are:d) the block's position when its kinetic energy is maximum, ande) the value of that maximum kinetic energy?Answers: a) 0.12 m b) 0.36 Jc) -0.36 J d) 0.060 m e) 0.090 J5. Three different masses are attached to a spring which hangs down vertically from the ceiling. A metric ruler hangsfrom the ceiling next to the spring and measures how far from the ceiling the spring hangs. When a 110N weight isattached to the spring, the spring reaches the 40 mm mark on the ruler. When a 240 N weight is attached to the spring,it hangs down to the 60 mm mark. An unknown weight is attached to the spring and it hangs down 30 mm.a) How far down will the spring hang when there is no weight on the spring?b) What is the weight W of the third mass?Answers: a) 23 mmb) 45 N

5. Let the natural length of the spring is l. Here,F1=110 NL1= 40 mmExtension, y1=(40-l)mmF2=240…

5. Three different masses are attached to a spring which hangs down vertically from the ceiling. A metric ruler hangs from the ceiling next to the spring and measures how far from the ceiling the spring hangs. When a 110 N weight is attached to the spring, the spring reaches the 40 mm mark on the ruler. When a 240 N weight is attached to the spring, it hangs down to the 60 mm mark. An unknown weight is attached to the spring and it hangs down 30 mm. a) How far down will the spring hang when there is no weight on the spring? b) What is the weight W of the third mass? Answers: a) 23 mm b) 45 N