What is the potential energy of the skater dependent upon? What is the kinetic energy of the skater dependent upon?

Is there ever more energy at the end than there was at the beginning?

the bal will not change its velocity.

it breaks and dirupture other materials and other sencews from the bottom

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this

answer(20) psi;