A 10 kg and a 4 kg mass are acted on with the same magnitude net force (which remains constant) for the same period of time. Both masses are at rest before the force is applied. After this time, the 10 kg mass moves with a speed v1 and the 4 kg mass moves with a speed v2. Which of the following is true?
1. V1 is equal to v2.
2. The ratio v1/v2 is equal to 2/5.
3. The ratio v1/v2 is equal to 5/2.
4. The ratio v1/v2 is equal to (2/5)2.
5. None of the above.