Projectile Motion Flashcards
How do you find the range? (horizontal distance travelled)
d = Vx (Horizontal velocity x Time.
What is the shape an object in projectile motion follows?
A symetrical parabola.
Why does an object in projectile motion vertically deccelerate, equal to zero, then accelerate?
Due to the force of gravity’s acceleration.
Does horizontal velocity stay the same during projectile motion?
yes.
How can you find total velocity?
By using the vertical and horizontal velocity in pythagoras theorem (a^2 + b^2 = c^2).
Why does vertical velocity change during projectile motion?
Because gravity’s acceleration is constantly applied to the object.
How can you find initial velocity, initial vertical velocity and/or initial horizontal velocity?
Using pythagoras or trig.
What does d refer to in projectile motion?
d is the distance from the ground vertically to the projectile.
What does range refer to in projectile motion?
The distance from the start to the finish point.
What are things you may have to find during projectile motion?
The time it takes for the object to complete its journey, the horizontal distance (Range), the time it takes to reach maximum height (when Vf = 0 aka the halfway point), the initial velocities.
How do you calculate acceleration or time to get to the highest point?
Vf = Vi + at and solve for either where Vf = 0
How do you find the time it takes for a projectile to travel from its start point to its final point?
Vx = Distance / Time or Time = Distance / Velocity
How do you use d = Vit + 1/2at^2 to find the height at a specific time?
D is the vertical height the projectile reaches and a is gravity’s acceleration.
what is the difference between the d in kinematics (d = Vit + 1/2at^2) and the d used in d = v x t?
the d in kinematics (d = Vit + 1/2at^2) refers to the vertical height the projectile reaches. The d used in d = v x t refers to the displacement from point to point horizontally.
