for problem 1 note v1 ' = - 1.8 m/s and then use conservation of momentum to find v2' = 6.77 m/s. Then find KE -KE' suing v1 for initial KE and v1' and v2' to find KE'. KE' = Ke1' + Ke2' obviously.
problem 2 use the equation for v' for elastic collsions at end of unit schedule to v1' and v2'. Use KE2' goes to PE spring where PE spring = k/2 change in length squared.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment