Question

so theres this physics question

Answer 1

\(E_A=E_B\) so \(\dfrac 1 2mv_A^2+mgh_A=\dfrac 1 2mv_B^2+mgh_B\)

Answer 2

The mechanical energy is the sum of the kinetic energy and the potential energy. In the absence of losses due to friction, etc., the mechanical energy at A, B and C will be identical.