A copper penny slides on a horizontal frictionless table. There is a square region of constant uniform magnetic field perpendicular to the table, as shown. Which graph correctly shows the speed v of the penny as a function of time t? 
Definitions:
Hippocampus
A critical region in the brain involved in the formation of new memories and spatial navigation.
Parietal Lobe
A region of the brain involved in processing sensory information regarding the location of parts of the body as well as interpreting visual information and processing language and mathematics.
Cingulate Gyrus
A curve of brain tissue located above the corpus callosum that plays a role in emotion formation, processing, learning, and memory.
Inaccurate Memories
Memory distortions or inaccuracies that arise from the retention, interpretation, and retrieval process, leading to false or altered recollection of events.
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