Problem 1: Explain your workAn object is held against a compressed spring. When releasedfrom rest it is pushed to the right along a horizontal surface, forwhich there is friction. After reaching point B it moves along thecurved, frictionless surface. The mass m of the object, the springconstant of the spring, k, the compression of the spring, x, thek, xcoefficient of kinetic friction on the horizontal part of the track,mUk, the distance between A and B, LAB, and the radius of theAcircular track, R, are all given.Bm=2.5kg k=50OON/m x=0.14m k=0.4 LAB=0.65m R=0.45ma. Determine the initial potential energy stored in the spring.b. Find the work done on the block by friction as the block moves from A to B.c. Use energy considerations to find the object's speed vB at B. Consider your system to consist of theblock, the track, the spring and Earth. Explain your work. d. Find the change in potential energy between B and C.e. Determine the speed of the object at point C. Explain. (Hint: remember that there is no frictionon the curved track, so you don't have to worry about friction here)f. Determine the force of the ramp on the object at point C. (consider drawing a FBD)

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Answered: b. Find the work done on the block by…

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