Velocity
What is the vertical velocity at the peak of a projectile's trajectory?
What is ZERO!
The horizontal component is independent from____________________.
What is the vertical component
The main factor affecting vertical velocity is ___________.
GRAVITY
What is the shape of the trajectory called?
Parabola
What does Vx=VxcosO solve for?
Horizontal velocity
If you start with an initial vertical velocity of 6 m/s, what is an estimated vertical velocity halfway up the parabola?
Any velocity less than 6 m/s but greater than 0 m/s
True/False. The horizontal velocity is affected by gravity.
FALSE. Gravity only acts DOWN
TRUE/FALSE. The vertical velocity is unaffected by the horizontal velocity.
TRUE
At what part of the projectile have minimum speed?
The top of the peak.
Which velocity does the time it takes to fall depend on?
Vertical velocity
What is the magnitude of velocity called?
What is SPEED
If an object had a horizontal velocity of 3 m/s, how would gravity affect it?
It wouldn't! Gravity only affects the vertical velocity
The vertical component is independent of the _______________________.
the horizontal component
In what direction is all of the velocity at the top of a projectile's peak? (vertical, horizontal, or both)
HORIZONTAL
To achieve a higher trajectory, how would you change the angle?
You need to increase the angle. (Make it point higher)
What factor does vertical velocity depend on?
Gravity
If the horizontal velocity started at 2 m/s, how much will the horizontal velocity change in 19.6 seconds?
None at ALL
When an object is falling down from its trajectory, how does the vertical velocity change? (direction and speed)
The direction points down and it gets faster
What is the distance the projectile travels called?
The range
If a ball was tossed upward and it reached its highest point, describe its velocity as it falls back down.
It INCREASES
At the peak of a projectile's trajectory the velocity is both horizontal and vertical, vertical only or horizontal only?
Horizontal ONLY
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!
For an upwardly launched projectile, _______ is the best angle to shoot a projectile the furthest distance.
45 degrees
Which velocity is the range dependent on?
The horizontal velocity (Vx)
What are the two variables you would need to calculate the range of any projectile?
1. Initial Velocity
2. Angle