Example #1: Energy in Curved Paths
Example #2: Energy in Curved Paths
Example #3: Energy in Curved Paths
Concept #1: More Rollercoaster Problems
Concept #2: Gravitational Energy is Relative (Pendulums)
Practice: A 60 kg surfer is moving with 3 m/s at a certain point in a wave. Later on, he is moving with 8 m/s at a second point, 2 meters lower. Calculate the work done by the wave on the surfer.
Example #4: More Pendulum Problems
Practice: A pendulum is built from a 3 kg bob and a 4 m-long light rope. It is attached to the ceiling and pulled from its equilibrium position until it makes an angle of 53° with the vertical. It is then given an initial speed of 2 m/s directed down.
(a) Calculate the maximum speed that the pendulum will attain.
(b) Calculate the maximum angle that the pendulum will make with the vertical on the other side.
Concept #3: Energy Problems with Bumps (Part A)
Concept #4: Energy Problems with Bumps (Part B)
Concept #5: Energy Problems with Bumps (Part C)