A 0.58-kg block attached to a spring with force constant 127 N/m is free to move on a frictionless, horizontal surface as in the figure below. The block is released from rest after the spring is stretched 0.13 m. = 0 F - 0 x- 0 (a) At that instant, find the force on the block. magnitude direction -Select-- v (b) At that instant, find its aceleration. magnitude m/s2 direction -Select-- v

A 0.58-kg block attached to a spring with force constant 127 N/m is free to move on a frictionless, horizontal surface as in the figure below. The block is released from rest after the spring is stretched 0.13 m. = 0 F - 0 x- 0 (a) At that instant, find the force on the block. magnitude direction -Select-- v (b) At that instant, find its aceleration. magnitude m/s2 direction -Select-- v