NEET Physics Kinetic Energy MCQ Question
A block of mass m is attached to a spring with spring constant k and is initially at rest at its equilibrium position. It is then displaced by a distance x and released. What is the kinetic energy of the block when it returns to the equilibrium position?
0 J
kx^2/2
mgx
mv^2/2
Correct Answer
Detailed Explanation
When the block returns to the equilibrium position, all the potential energy stored in the spring is converted into kinetic energy. Using V(x) = kx^2/2, the kinetic energy at equilibrium is kx^2/2.
Found an issue with this question?
Related Questions
More from
Which of the following statements about power is correct?
Assertion (A): The work-energy theorem is an integral form of Newton's second law. | Reason (R): The work-energy theorem involves an integral over an ...
Assertion (A): The dot product of two vectors is zero when the vectors are perpendicular. | Reason (R): The scalar product of two vectors is the produ...