Horizontal Projectiles

A projectile is an object upon which the only force acting is gravity.

So what is a HORIZONTAL Projectile?

A projectile that is launched horizontal to the surface of the Earth. (straight out)

1. Is there anything pushing the projectile once it leaves the cannon?

2. What is the only force acting on the projectile (assuming not friction)?

3. Which direction is gravity?

4. What does gravity do to the speed of the projectile as it falls?

2-D means that there are 2 sets of variables

2 distances (dx and dy)

2 velocities (vx and vy)

x direction is horizontal

y direction is vertical

A pool ball leaves a 0.60-meter high table with an initial horizontal velocity of 2.4 m/s. Predict the time required for the pool ball to fall to the ground and the horizontal distance between the table's edge and the ball's landing location.

GIVENS:

dy = 0.60m

Vix = 2.4 m/s

t = ?

A soccer ball is kicked horizontally off a 22.0-meter high hill and lands a distance of 35.0 meters from the edge of the hill. Determine the landing velocity of the soccer ball.

Givens:

dy = 22.0 m

dx = 35.0 m

R = ?

Need to find Vfx and Vfy