A 1.5-kg object moving along the x axis has a velocity of +4.0 m/s at x = 0. If the only force acting on this object is shown in the figure, what is the kinetic energy of the object at x = +3.0 m? 
Definitions:
Object Permanence
The understanding that objects continue to exist even when they cannot be observed directly.
Sensorimotor
Relating to or involving both sensory and motor functions or pathways, often used in reference to a stage in early child development.
Preoperational
A stage in Piaget's theory of cognitive development where children from ages 2 to 7 have increasing mental representation but do not yet understand concrete logic.
Concrete Operational
This term refers to Piaget's stage of cognitive development where children aged 7 to 11 years can think logically about concrete events and understand the concept of conservation.
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