<u>Answer:</u>
Ranks based on momentum are
<em>1. </em><em>1200 kg car going at 15 m/s.</em>
<em>2.</em><em> 15 kg meteor going at a speed of 100 m/s.</em>
<em>3. </em><em>100 kg person running at 5 m/s.</em>
<em>4.</em><em> 10000 kg train car at rest.</em>
<u>Explanation:</u>
Product of a body’s mass and velocity gives the value of its momentum. It is given by the equation
![P=mv](https://tex.z-dn.net/?f=P%3Dmv)
where is the mass of the object and is the velocity.
Calculating the values of momentum:
1. mass= 1200 kg, velocity= 15 m/s
![p=mv =1200 \times 15 = 18000 \ kg \ m/s](https://tex.z-dn.net/?f=p%3Dmv%20%3D1200%20%5Ctimes%2015%20%3D%2018000%20%5C%20kg%20%5C%20m%2Fs)
2. mass= 15 kg, velocity= 1000 m/s
![p= 15 \times 1000 = 15000 \ kg \ m/s](https://tex.z-dn.net/?f=p%3D%2015%20%5Ctimes%201000%20%3D%2015000%20%5C%20kg%20%5C%20m%2Fs)
3. mass= 100 kg, velocity= 5 m/s
![p= 100 \times 5 = 500 kg \ m/s](https://tex.z-dn.net/?f=p%3D%20100%20%5Ctimes%205%20%3D%20500%20kg%20%5C%20m%2Fs)
4. mass= 1000 kg, velocity= 0 m/s
![p= 10000 \times 0= 0 \ kg\ m/s](https://tex.z-dn.net/?f=p%3D%2010000%20%5Ctimes%200%3D%200%20%5C%20kg%5C%20m%2Fs)