The elastic potential energy stored in a spring of spring constant k when compressed by a distance x is:
1/2kx²
When a spring of spring constant \(k\) is compressed (or stretched) by a distance \(x\) from its natural length, the elastic potential energy stored in it is:
\(U = \dfrac{1}{2}kx^{2}\)
This follows from the work done against the spring force, which increases linearly with displacement, so the stored energy is proportional to the square of the compression with a factor of one-half.
Important Questions from Work Power and Energy
A boy raises a box with a weight of 120 N from a height of 2 m. The work done by him is ________.
While releasing the arrow from a stretched bow, the Potential Energy of the bow is converted into?
Which is the main source of almost all energy on Earth?
Area under constant velocity – time curve equals ________ of the object over a given time interval.
If a body of mass is m, linear momentum is p and kinetic energy is K, then which of the following expressions is true?
