Question

An ostrich with a mass of 143 kg is running to
the right with a velocity of 12 m/s.
Find the momentum of the ostrich.
Answer in units of kg · m/s

Answer 1

An ostrich with a mass of $143\,\mathrm{kg}$ is running to the right with a velocity of $12\,\mathrm{m/s}$. Find the momentum of the ostrich. Answer in units of $\mathrm{kg} \cdot \mathrm{m/s}$.

**Solution.**

$$m = 143\,\mathrm{kg},\quad v = 12\,\mathrm{m/s};$$ $$p - ?$$

The momentum of the ostrich is:

$$p = mv.$$ $$p = 143 \cdot 12 = 1716\,\left(\mathrm{kg} \cdot \frac{m}{s}\right).$$

**Answer:** $p = 1716\,\mathrm{kg} \cdot \frac{m}{s}$.