A 1. 50-kg book is sliding along a rough horizontal surface. At point a it is moving at 3. 21 m/s, and at point b it has slowed to 1. 25 m/s. How much work was done on the book between a and b?.

We consume for various reasons. sometimes we buy in order to reduce suffering (medicine), or to give pleasure (movies), or to feel safer (a lock), to become wiser (education), or to be more comfortable (a chair). what is the one word used by economists that includes all these meanings? a. cost b. price c. demand d. benefit