Test corrections are due on Wednesday.

There are problems due Friday.

Today we'll continue to look at energy (mostly kinetic) and the transfer of energy (due to an applied force):

Remember, energy is not a vector, it is a scalar, but this doesn't prohibit it from being negative. For example, negative work (transfer of energy) simply means that the applied force is removing energy from an object. For mechanical systems, this means that the object is slowing down.