As shown in the figure, a 4.0-kg block is moving at 5.0 m/s along a horizontal frictionless surface toward an ideal spring that is attached to a wall. After the block collides with the spring, the spring is compressed a maximum distance of 0.68 m. What is the speed of the block when the spring is compressed to only one-half of the maximum distance? 
Definitions:
Enlightenment
A philosophical movement in the 17th and 18th centuries emphasizing reason, individualism, and skepticism of traditional doctrines.
Collective Worship
Describes the act of a group of individuals coming together to honor, praise, or pray to a deity or higher power, emphasizing community and shared belief.
Durkheim
A pioneering French sociologist, Emile Durkheim, known for his foundational contributions to the field of sociology, including his studies on social cohesion and anomie.
Ritual
A set of fixed actions and sometimes words performed regularly, especially as part of a ceremony or to express a cultural or religious belief.
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