Multiple Choice
A roller coaster starts from rest at point A. If you ignore friction and take the zero of potential energy to be at C,
A) the kinetic energy of the coaster at D will be equal to its potential energy at A.
B) the kinetic energy of the coaster at E will be equal to its potential energy at C.
C) the kinetic energy of the coaster at C will be equal to its potential energy at A.
D) the kinetic energy of the coaster at B will be equal to its potential energy at C.
E) None of these is correct.
Correct Answer:
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