Listen NCERT Audio Books to boost your productivity and retention power by 2X.
Can the potential energy in a simple harmonic motion be negative? Will it be so if we choose zero potential energy at some point other than the mean position?
No, the potential energy of the body in simple harmonic motion can never be negative because the minimum potential energy of the body can be zero at mean position. As the body crosses the mean position the potential energy keeps on increasing and it is maximum at extreme positions.
However, if we choose any other point other than mean position where potential energy is zero, then there is a possibility that the potential energy can be negative.
It is proposed to move a particle in simple harmonic motion on a rough horizontal surface by applying an external force along the line of motion. Sketch the graph of the applied force against the position of the particle. Note that the applied force has two values for a given position depending on whether the particle is moving in positive or negative direction.
A hollow sphere filled with water is used as the bob of a pendulum Assume that the equation for simple pendulum is valid with the distance between the point of suspension and centre of mass of the bob acting as the effective length of the pendulum. If water slowly leaks out of the bob, how will the time period vary?