Show:
Velocity
Horizontal component
Vertical component
Projectile motion
Work Problems
100
What is the vertical velocity at the peak of a projectile's trajectory?
Zero
100
The horizontal component is independent from____________________.
What is the vertical component
100
The main Force affecting vertical velocity is ___________.
The FORCE OF GRAVITY
100
If a tennis ball is launched across a tennis court and it takes 4.5 seconds to reach half-court, how long is the full motion of the projectile?
9 seconds!
100
How much time would it take for a pencil to fall 0.98 meters?
0.45 sec
200
If a ball is thrown straight up with a velocity of 5.8 m/s, what will its velocity be as it approaches the ground? What will the velocity be at the top?
-5.8 m/s coming down and 0m/s at the top
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
When in the trajectory does projectile have minimum speed?
The top of the peak.
200
A monkey horizontally throws a banana off 15 m tall tree. The banana fell 8 m away from the tree. What was the horizontal velocity of the banana?
4.6 m/s
300
What is the vertical velocity when an object is launched horizontally?
0m/s
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 independentto the _______________________.
the horizontal component
300
In what direction (Horizontal or vertical) is the velocity at the top of a projectile's peak?
HORIZONTAL
300
A ball is shot at a bucket from a table with a height of 25 m. The initial velocity is 4.5 m/s. What is the horizontal distance of the ball?
What is 7.2 m
400

Acceleration of gravity is equal to _______.

-9.8 meters per second squared

400
How much will the horizontal velocity of a projectile change in 19.6 seconds?
None at ALL; it remains constant
400

Does the vertical Velocity change over time while a projectile is in motion?

Yes

400
What is the vertical velocity at the top of any projectile's path?
0 m/s
400

A football is thrown straight up with a speed of 15 m/s. After you catch it, how long was the ball in the air? 

3.1s

500
At the top of a projectile's trajectory, is there a horizontal velocity?
Yes and vertical velocity is zero
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
For an upwardly launched projectile, _______ is the best angle to shoot a projectile the furthest distance.
45 degrees
500
If a plane flying at a constant speed drops cargo, how does the cargo fall relative to the plane?
Right under it
500

A basketball player shoots a basketball with a speed of 10 m/s. The player shoots the ball at an angle of 40 degrees. What equation allows us to find the Vix and Viy?

Vx = 10 Cos(40) Vy = 10 Sin(40)