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Restoring Force

The potential...

Question

The potential energy of a system is represented as shown in the figure. The force acting on the system will be represented by

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Solution

The correct option is C

As slope of U - x graph is positive and constant upto distance a then it becomes zero. Therefore from $F = - \frac{d U}{d x}$ we can say that upto distance a force will be constant (negative) and suddenly it becomes zero.

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Similar questions

(U)

(x)

U = A x^{2} - B x

x

A

B

U = a y^{2} - b y

y

a

b

R

U

x

- \frac{d U}{d x}

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