P5c - Projectile Motion Flashcards
1
Q
What is a projectile?
A
An object moving forward at a constant velocity, but accelerating because of gravity at the same time.
2
Q
What is the trajectory of a projectile like on Earth?
A
It is a curved shape, in the shape of a parabola.
3
Q
Once a projectile has been fired, what is the only force acting on it? What does this force affect?
A
- gravity.
- only affects the vertical motion, making it accelerate vertically.
4
Q
Is there any acceleration in the horizontal direction, once a projectile has been fired?
A
No.
5
Q
Fill in the blank.
The resultant velocity of a projectile is the ____________________________ at that point.
A
- vector sum of its horizontal and vertical velocities.
6
Q
What is the maximum range of a projectile once it has been fired?
A
- 45o
