Projectile Motion

Question 1

When an object is in free fall

Answer 1

Its VERTICAL acceleration is 10m/s/s
Ita HORIZONTAL acceleration is always 0m/s/s

Question 2

Perpendicular directions

Answer 2

Velocities in perpendicular directions add with the Pythagorean Theorem, just like perpendicular forces.

Question 3

Magnitude

Answer 3

The magnitude of an object’s velocity is known as its speed.

Question 4

How to approach these problems

Answer 4

To approach a projectile motion problem, make two kinematics charts, one vertical, one horizontal.