Velocity
Horizontal component
Vertical component
Projectile motion
Random
100

What is the vertical velocity at the peak of a projectile's trajectory?

What is ZERO!

100
The horizontal component is independent from____________________.
What is the vertical component
100
The main factor affecting vertical velocity is ___________.
GRAVITY
100
If a tennis ball takes 4.5 sec to reach its peak, how long does it take to reach the other player?
9 seconds!
100
How much time would it take for a pencil to fall 0.98 meters?
0.45 sec
200

Horizontal Velocity is always 

Constant

200
True/False. The horizontal velocity is affected by gravity.
FALSE
200
TRUE/FALSE. The vertical velocity is unaffected by the horizontal velocity.
TRUE
200

If Jasper threw a tennis ball off a 10-meter cliff, How long would it take for the ball to hit the ground?

1.4 s

200

Define Trajectory

It is the path of a projectile

300
What is the magnitude of velocity called?
What is SPEED
300
If Jane can jump her unicycle 0.34 meters off her driveway from rest, how would riding down the driveway(moving) and jumping affect her height?
Not at all, her vertical is independent of her horizontal.
300
The vertical component is independent the _______________________.
the horizontal component
300

If Jasper threw the ball at 5m/s. Where would the ball land with respect to the cliff?

Remember t=1.4

7 meters away from the cliff

300
What is the trajectory of a projectile called?
a parabola!
400
What factor does vertical velocity depend on?
Gravity
400

How much will the horizontal velocity change in 19.6 seconds?

None at ALL

400

Y can be determined by multiplying the acceleration due to gravity by ________________.

Y=viy(t)+0.5 ay t2

400

Rolyna was the cavewoman from the physics story, she rolled a pumpkin at 2m/s off a cliff to hit the lion below. The cliff was 15 meters high. How long was the pumpkin in the air?

1.7s

400

If you drop a bullet while firing a bullet from a gun at the same time and height, which would hit the ground first?

They would both hit the ground at the same time.

500

What is the acceleration for a projectile in the y-direction?

What is 9.8m/s2

500
If you were to throw a rock 4.3 m/s, horizontally, and drop another from the same height, which would hit the ground first?
Neither, they would hit the ground at the same time!
500

What is the  acceleration for an object in the y direction?

9.8m/s2

500

Daily Double

Write the variable that stands for initial velocity in the horizontal direction.

Vix

500

EXPLAIN where AND how a package dropped from a plane lands with respect to the moving plane.

The package ends up UNDER the moving plane, since its horizontal velocity remains constant.

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