PLEASE HELP How can I find the energy of this rotational clo

PLEASE HELP. How can I find the energy of this rotational clockwise motion?

Find the possible points of inflection off. Create a number line to determine the intervals on which/is concave up or concave down./(x) = x^2 - 2x + 1 f(x) = -x^2 - Sx + 7 f(x) = x^3 - x + 1 f(x) = 2x^3 - 3x^2 + 9x + 5

Solution

It is zero as we all no net energy change for a closed path it is zero .According to law total energy before and after is same ...and in circular motion no net change in potential energy so it will be zero.