Velocity Vectors & Projectile Motion Wind 20 km/h East Wind 20 km/h West Wind 20 km/h South...

Velocity Vectors

&

Projectile Motion

Wind 20 km/h East

Wind 20 km/h West

Wind 20 km/h South

Plane 100 km/h East

Plane 100 km/h East

Plane 100 km/h East

VELOCITY VECTORS

Plane 120 km/h East

Plane 80 km/h East

Plane 102 km/h SE

Question 1

• When an airplane flies directly into the wind, is the speed of the airplane across the ground more, less, or unaffected?

• Answer: Less speed. In fact, if the airplane's speed matches wind speed, the airplane would stay in one place (like a bird often does when it faces the wind) .

Question 2

• When an airplane flies directly with the wind, so the wind comes from behind, is the speed of the airplane across the ground more, less, or unaffected?

• Answer: It is more.

Question 3

• When an airplane flies in a cross wind, so its nose is pointing at right angles to the wind, is the speed of the airplane across the ground more, less, or unaffected?

• Answer: It is more! How much more and in what direction is found by vectors!

Projectile Motion

2gt

21dFree Fall

timedistance Speed => distance = Speed ∙ time

Projectile Motion

Projectile Motion

Vy = g ∙ t t = 2 ∙ Vy / g R = Vx ∙ t

Projectile Motion

Projections at Different Angles

Projectile Motion