Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
18 Cards in this Set
- Front
- Back
|
The horizontal distance that a projectile can travel is called ....
|
range
|
|
|
The height that a projectile can reach is its....
|
altitude or peak
|
|
|
The time for a projectile to travel horizontally is the ____ as the time it takes for it to travel vertically.
|
same
|
|
|
The horizontal velocity of a projectile _____ if wind resistance is ignored.
|
is constant (stays the same)
|
|
|
If a hurled marble has an initial horizontal velocity of 8 m/s, then what is the horizontal velocity as it is striking the ground?
|
8 m/s
|
|
|
What is the vertical velocity of a golf ball at the peak of its trajectory as it moves forward at 150 m/s?
|
0 m/s
|
|
|
A projectile has both _____ and ______ components of velocity.
|
horizontal
vertical |
|
|
It's the ____ velocity of a projectile that stays the same.
|
horizontal
|
|
|
It's the _____ velocity component of a projectile that causes to curve downward as it flies forward.
|
vertical
|
|
|
The name given to the path taken by a projectile is the ....
|
trajectory
|
|
|
For maximum range, a projectile should be fired at ____ degrees
|
45
|
|
|
If a projectile were fired at 40 degrees at what different angle would you need to fire the same projectile at the same speed to hit the same range mark?
|
50 degrees (the complement to 40 degrees)
|
|
|
If you know the time that a golf ball is in the air, how much of that time do you need to know to determine the altitude of the ball, if ball comes back to original altitude?
|
Half the time.
|
|
|
The _____ of a golf ball hit an angle of 39⁰ and at its maximum altitude is 0 m/s.
|
up/down velocity
|
|
|
What is the vertical displacement of a golf ball that is hit upward at an angle and returns to ground at the same altitude as the green?
|
y = 0 (up +y and down -y)
|
|
|
What is the short cut for finding time for an up/down projectile when y = 0?
|
t = -2(Vvertical) / g
|
|
|
Which equation helps you find range?
|
x = (Vhorizontal) (t)
|
|
|
The horizontal component of a projectile's velocity is ______ of the vertical component.
|
independent
|
