### Home > CALC > Chapter 7 > Lesson 7.3.4 > Problem 7-149

7-149.

**Multiple Choice:** Two particles start at the origin and move along the -axis. For

*and*

*. For how many values of*

*do the particles have the same velocity?*

How many ways can you make ?

7-149.

**Multiple Choice:** Two particles start at the origin and move along the -axis. For

How many ways can you make ?