True or False questions on concepts and equations of a projectile with answers.
Answers to true or false
A projectile is launched. Assuming that air resistance is negligible, which of the following are true?
- Any object upon which the only acting force is the force of gravity is called a projectile.
- The projectile problem involves constant velocity along the horizontal direction and constant acceleration a in the vertical direction.
- The vertical component of the velocity of the projectile is constant.
- The horizontal component of the velocity of the projectile is constant.
- The acceleration is constant.
- The kinetic energy of the projectile is constant.
- The potential energy of the projectile is constant.
- The sum of the kinetic and potential energies is constant.
- The minimum speed of the projectile is equal to horizontal component of the velocity of the projectile.
- The horizontal component of the velocity of the projectile varies linearly with time.
- The horizontal component of the displacement of the projectile varies linearly with time.
- The vertical component of the displacement of the projectile varies linearly with time.
- The path of a projectile is a parabola.
