2- An elastic spring of force constant, k = 5x10 N/m is compressed by, x =...

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2- An elastic spring of force constant, k = 5x10 N/m is compressed by, x = 2x10-2 m. A block at the end of the compressed spring is released from rest, see the figure. (a) Find the force to compress the spring by, x = 2x10-2 m. (b) Find the kinetic energy of the block as it passes through the equilibrium position, x = 0 if the surface is frictionless. (c) Find the kinetic energy of the block as it passes through the equilibrium position if there is a constant friction force, f= 20 N acting on the block. 00000000 D x=0 2- An elastic spring of force constant, k = 5x10 N/m is compressed by, x = 2x10-2 m. A block at the end of the compressed spring is released from rest, see the figure. (a) Find the force to compress the spring by, x = 2x10-2 m. (b) Find the kinetic energy of the block as it passes through the equilibrium position, x = 0 if the surface is frictionless. (c) Find the kinetic energy of the block as it passes through the equilibrium position if there is a constant friction force, f= 20 N acting on the block. 00000000 D x=0