Final answer:
The momentum of a 20 kg cannonball moving at a speed of 110 m/s is calculated by multiplying the mass by the velocity, resulting in a momentum of 2200 kg·m/s.
Step-by-step explanation:
The momentum of an object can be calculated using the formula momentum (p) = mass (m) × velocity (v). In this case, to find the momentum of a 20 kg cannonball moving at a speed of 110 m/s, we simply multiply the mass by the velocity:
p = m × v
p = 20 kg × 110 m/s
p = 2200 kg·m/s
Hence, the correct answer to the given question is c. 2200 kg m/s.