An ideal spring hangs from the ceiling. A 1.75 kg mass is hung from the spring, stretching the spring a distance d = 0.0925 m from its original length when it reaches equilibrium. The mass is then lifted up a distance L = 0.0235 m from the equilibrium position and released. What is the kinetic energy of the mass at the instant it passes back through the equilibrium position? kinetic energy J Equilibrium position

I need help with finding the last part.  A moving 1.70 kg block collides with a horizontal spring whose spring constant is 303 N/m. The block compresses the spring a maximum distance of 14.50 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal surface is 0.120. What is the work done by the spring in bringing the block to rest? How much mechanical energy is being dissipated by the force of friction while the block is being brought to rest by the spring? What is the speed of the block when it hits the spring?

A mass of 0.25 kg is attached to a spring whose spring constant is k = 25 N/m. The spring is compressed 0.35 m on a frictionless surface and released from rest. At what location is the kinetic energy at a maximum, what is the amount of kinetic energy, and what is the velocity of the mass at that point?

A 1.5 kg block is forced against a horizontal spring, compressing the spring 0.17 m. When released, the block moves on a horizontal table top for 1.01 m before coming to rest. The spring constant is 112 N/m. Determine the coefficient of kinetic friction between the block and the table