Question

How
energy is
transformed during motion of
simple pendulum into its three positions two
entremes and one
mean position​

Answer 1

Answer:

The total energy of a simple pendulum is,

E=12mA2(g)l(or)E=12mglA2

The above equation, shows that the total energy of a simple pendulum remains constant irrrespective of the position at any time during the oscillation i.e., the law of conservation of energy is valid in the case of a simple pendulum. At the extreme position O it is totally converted as kinetic energy. At any other point the sum of the potential and kinetic energy at the mean position or maximum potential energy at the extreme position. As the bob of the pendulum moves from P to O, the potential energy decreases but appears in the same magnitude as kinetic energy. Similarly as the bob of the pendulum moves from O to P or Q, the kinectic energy decreases to the extent it is converted into potential energy. as shown in figure.

Answer 2

Answer:

in a simple pendulum , the energy at the mean position is Kinetic Energy as it only possess energy . potenetial energy is 0 at mean position because it doesnot posses any height. at extreme position , the pendulum possess potential energy and not kinetic energy because at extreme point , it reaches maximum height and it gets halt at extreme point. any other position in the oscillation had both KE and PE as they lie between mean and extreme positions.

Explanation: