Conservation of Energy Problem Solving (with LOL diagrams)

Some examples of solving conservation of energy problems and filling out energy bar charts and system diagrams for them.

0:00 - Problem 1
2:48 - Problem 2
5:46 - Problem 3

Problem 1 - A cart moving at 5 m/s collides with a spring. At the instant the cart is motionless, what is the largest amount that the spring could be compressed? Assume no friction.

Problem 2 - A rock is shot straight up into the air with a slingshot that had been stretched 0.30 m. Determine the greatest height the rock could reach. Assume no air resistance.

Problem 3 - Determine the final velocity of the rollercoaster, assuming a 10% loss to friction.