1. Understand Momentum

Momentum is a measure of an object's mass in motion. It's calculated as:

* Momentum (p) = mass (m) * velocity (v)

2. Find the Total Mass

* The total mass includes the person and the bicycle: 37 kg + 18 kg = 55 kg

3. Determine the Velocity

* The velocity is given as 1.2 meters per second (m/s) south.

4. Calculate Momentum

* Momentum (p) = 55 kg * 1.2 m/s = 66 kg*m/s

Therefore, the momentum of the person and bicycle is 66 kg*m/s south.