Part II B. Write TRUE if the statement is correct and FALSE if it is otherwise. 1. Any object upon which the only acting force is the force of gravity is called a projectile. 2. The projectile problem involves constant velocity along the horizontal direction and constant acceleration along the vertical direction. 3. The vertical component of the velocity of the projectile is constant. 4. The horizontal component of the velocity of the projectile is constant. 5. The acceleration of a projectile is constant. 6. The magnitude of the velocity of a projectile is not constant, therefore its kinetic energy is not constant. 7. The potential energy of the projectile is constant. 8. The height of the projectile changes and therefore the potential energy due to gravitation in not constant. 9. The minimum speed of the projectile is equal to horizontal component of the velocity of the projectile. 10. The path of a projectile is a parabola.​