Given below is the plot of a potential energy function $U ( x )$ for a system, in which a particle is in one dimensional motion, while a conservative force $F ( x )$ acts on it. Suppose that ${E}_{\text{mech}} = 8J$ , the incorrect statement for this system is :

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Given below is the plot of a potential energy function U ( x ) for a system, in which a particle is in one dimensional

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Correct answer: B. at x < x _ 1 , K . E . is smallest and the particle is moving at the slowest speed.

(A) at x > x _ 4 , U = constant = 6J K = E _ mech . - U = 2J = constant (B) at x K = E _ mech . - U = 8 - 8 = 0J Particle is at rest. (C) At x = x _ 2 , U = 0 ⇒ E _ mech . = K = 8J KE is greatest, and particle is moving at fastest speed. (D) At x = x _ 3 , U = 4J U + K = 8J K = 4J

Given below is the plot of a potential energy function U ( x ) for...

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