Imagine that you are the equipment manager of a professional baseball team. One of your jobs is to keep baseballs on hand for games. Balls are sometimes lost when players hit them into the stands as either home runs or foul balls. Estimate how many baseballs you have to buy per season in order to make up for such losses. Assume that your team plays an 81-game home schedule in a season.

Vectors What is a vector Amathematical representation of a physical quantity that has magnitude and direction Why can vectors be moved from one position to another The magnitude and direction of the vector is still the same regardless of its position o Moving vectors from one position to another doesn’t change anything about the vector What is a unit vector Avector that has a dimensionless magnitude of one What are unit vectors used for They are used solely to represent a direction o They no physical significance or dimension What are Hat on vector What do the unit vectors I j k form Aset of mutually perpendicular vectors in a right-handed coordinate system Components of vector How do you represent