Answer to Question #166635 in Physics for Ariana

Question

A block on a horizontal surface is attached to a horizontal spring of negligible mess and spring constant 16 N/M. The other end of the spring is attached to a wall, and there is an negligible friction between the block and the horizontal surface. The block spring system experiences simple harmonic motion,as shown in the graph . What is the change in the spring potential energy of the block spring system from when the block is released to when the block has its greatest speed

Answer 1

$$E=\frac{1}{2}kx^2\\E=\frac{1}{2}(16)(1)^2=8\ J$$