Q & A forum

1. A projectile is launched. Assuming that air resistance is negligible, which of the following are true?

1. The projectile problem involves constant velocity along the horizontal direction and constant acceleration a in the vertical direction.
   
2. The vertical component of the velocity of the projectile is constant.
   
3. The horizontal component of the velocity of the projectile is constant.
   
4. The acceleration is constant.
   
5. The kinetic energy of the projectile is constant.
6. The potential energy of the projectile is constant.
7. The minimum speed of the projectile is equal to the horizontal component of the velocity of the projectile
   
8. The horizontal component of the displacement of the projectile varies linearly with time