If data are from a trusted source and the results are validated by multiple tests, the evidence supporting a scientific claim is

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?

In a game of pool, ball a is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls b and c, which are at rest and aligned as shown. knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities va, vb, and vc.

Based on this activity, is kinetic energy always transformed into potential energy?