Question

two people must have the same speed and velocity if
a they are walking toward each other at 2 m/s
b they are walking away from each other at 2 m/s
c they are jogging side by side at 5 m/s
d they are jogging to two different destinations

Explanation:

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction). For speed and velocity to be the same for two people, both magnitude and direction must match. In option C, they are jogging side - by - side at the same speed and in the same direction. In options A and B, the directions are opposite. In option D, the directions are different as they are going to different destinations.

Answer:

C. they are jogging side by side at 5 m/s