A horizontal block-spring system with the block on a frictionless surface has total mechanical energy E 53.4) and a maximum displacement from equilibrium of 0.244 m. (a) What is the spring constant? 1793 N/m (b) What is the kinetic energy of the system at the equilibrium point? 53.4 (c) If the maximum speed of the block is 3.45 m/s, what is its mass? 8.97 ko (d) What is the speed of the block when its displacement is 0.160 m7 201 m/s (e) Find the kinetic energy of the block at x = 0.160 m. 30.6 () Find the potential energy stored in the spring when x-0.160 m. 22.8 (0) Suppose the same system is released from rest at x 0.244 m on a rough surface so that it loses 15,41 by the time it reaches its first turning point (after passing equilibrium at 0) What is its position at that instant? 2006-1X The response you submitted has the wrong sign, m