For a particle described by l = a) show that if u = e = t + u is constant - = u(i,#), b) show that if u then e is conserved, but it is not necessarily e t+u. ta +t-u(a- ), show that p = pa +p, is conserved. hint: try defining 12. for l new coordinates: x = fg+ i»

As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy