Question

TRUE or FALSE.

1 . A projectile is any object upon which the only force is gravity

2. Projectiles travel with a parabolic trajectory due to the influence of gravity

3. There are no horizontal forces acting upon projectiles and thus no horizontal acceleration,

4. The horizontal velocity of a projectile is constant (a never changing in value),

5. There is a vertical acceleration caused by gravity; its value is 9.8 m/s/s, down

6. The vertical velocity of a projectile changes by 9.8 m/s each second

7. The horizontal motion of a projectile is independent of its

Answer 1

1) A projectile is any object upon which the only force is gravity - True.

2) Projectiles travel with a parabolic trajectory due to the influence of gravity - True.

3) There are no horizontal forces acting upon projectiles and thus no horizontal acceleration - True.

4) The horizontal velocity of a projectile is constant (a never changing in value) - True.

5) There is a vertical acceleration caused by gravity; its value is 9.8 m/s/s, down - True.

6) The vertical velocity of a projectile changes by 9.8 m/s each second - True.

7) The horizontal motion of a projectile is independent of its vertical motion - True.