[Projectile Motion]

Question 1

18. Vertical Motion of a Projectile

Answer 1

In the vertical direction, the object experiences an acceleration of ± 9.81 ms-2. The object momentarily stops at the highest point in the vertical.

Question 2

19. Horizontal Motion of a
    Projectile

Answer 2

In the horizontal direction, the object experiences an acceleration of 0 ms-2; we assume drag is negligible.

Question 3

20. Independence

Answer 3

Vertical and horizontal motion do not affect each other. They only share the same time, t.