A 12 k g block on a horizontal frictionless surf…
A 12 k g block on a horizontal frictionless surface as attached to a light spring (spring constant k = 8 . 0 × 10 2 N m ). The block is initially at rest at its equilibrium position when a force (magnitude P → = 80 . N ) acting parallel to the surface is applied to the block, as shown. What is the speed of the block when it is 13 c m from its equilibrium position? fig_q4_t3.jpg