A 10 kg object is acted on by a conservative force given by F = - 2x – 6x 2 , with F in newtons and x in meters. Take the potential energy associated with the force to be zero when the object is at x = 0. The potential energy of the system at x = 2 m is:
Text Solution
Verified by ExpertsThe correct answer is:
B
U x = - 
U x = x 2 + 2x 3
at x = 2
U = 4 + 16 = 20 J
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