Projectial Motion Flashcards
Describe the motion of a projectile.
A projectile is an object on which the only force acting is gravity, resulting in two-dimensional motion with horizontal and vertical components.
Define horizontal projectile motion.
Horizontal projectile motion refers to the motion of an object moving freely along a level surface where the horizontal velocity is always constant.
Explain the vertical component of a projectile’s motion.
In vertical projectile motion, the force due to gravity affects the object, causing the vertical component of velocity to change with time.
How does the path of a projectile appear when it is accelerating only in the vertical direction?
The path traced by such a projectile is parabolic, as it moves at a constant horizontal velocity while accelerating vertically.
What happens to the vertical velocity of a projectile at the top of its trajectory?
At the top of the trajectory, the vertical velocity of the projectile is zero.
Describe the relationship between horizontal and vertical velocities in projectile motion.
In projectile motion, the horizontal velocity remains constant while the vertical velocity changes due to the acceleration of gravity.
How do you analyze projectile motion in two dimensions?
To analyze projectile motion in two dimensions, two equations are used: one for the x direction (horizontal) and one for the y direction (vertical), typically derived from kinematic equations.
How do you analyze projectile motion in two dimensions?
To analyze projectile motion in two dimensions, two equations are used: one for the x direction (horizontal) and one for the y direction (vertical), typically derived from kinematic equations.
What is the initial vertical velocity of a projectile launched horizontally?
The initial vertical velocity of a projectile launched horizontally is equal to zero.
Explain the changes in vertical velocity as a projectile moves upward and downward.
The vertical velocity decreases as the projectile moves upward, reaches zero at the top, and then increases as it moves downward.
What is the significance of breaking velocity into components for a projectile launched at an angle?
Breaking the velocity into components is essential for analyzing the motion of a projectile launched at an angle, as it allows for separate calculations of horizontal and vertical motions.
Describe the significance of the ‘y’ displacement in projectile motion when it begins and ends at ground level.
The ‘y’ displacement is zero (y = 0) when the projectile begins and ends at ground level.
How does air resistance affect the path of a projectile?
Air resistance reduces the maximum height, the velocity, and the range of a projectile.
What factors influence the horizontal range of a projectile?
The factors include the angle of launch, initial velocity, and air resistance.
What is the value of g in projectile motion calculations?
The value of g is approximately 9.81 m/s².
