In the relational database model

An example of a tangible benefit is

Rotational version of force

Unit for velocity

The rate at which position changes

Used to find the direction of torque

When a book rests on a table the two forces present are weight downward and the normal force upward.  Where does the normal force come from?

Round 1 of the world’s most boring game show called “Work or Not Work?”    A mouse pushes a block of cheese horizontally across a table’s surface. Work or Not Work?!?!?

Astronauts in orbit are weightless. 

Energy can neither be created nor destroyed only converted into different forms.