A steel piano wire is 1.60 m long with a diameter of 0.20 cm. Approximately what tension force would break it?

Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

What’s #16 asking me and how do i solve it?