Ch.10 pt 2 Flashcards
T/F: A rocket is an appropriate example of a projectile.
False
__ __ relates to the distance a projectile travels
Horizontal component
__ __ relates to the maximum height achieved by a projectile
Vertical component
__ influences the vertical, but not the horizontal, component of projectile motion of a body in free fall
The force of gravity
It is customary to disregard air resistance in discussing and solving problems related to projectile motion because __.
effects of air resistance on the horizontal component of projectile motion are variable
What are 3 mechanical factors that affect the trajectory of a projectile?
1.) the projection speed
2.) the angle of projection
3.) the relative height of projection
A body in a free fall that is subject only to the forces of gravity and air resistance is called a __
projectile
T/F: Horizontal and vertical components of a projectile are conditional, i.e, they are dependent on each other.
False
In the context of projectile trajectory, __ is solely dependent on the angle of projection.
trajectory shape
The highest point in the trajectory of a projectile is known as the __
apex or peak
Because air resistance is disregarded in discussing and solving problems related to projectile motion, it allows __
treating the horizontal component as an unchanging quantity
The flight path of a projectile is known as its __
trajectory
When projection angle and other factors are constant for a projectile, the projection speed determines the __ of a projectile’s trajectory
length
The direction at which a body is projected with respect to the horizontal is known as its __
angle of projection
At the __ of the flight of a body through air, vertical velocity is zero
apex
The __ of a projectile is its horizontal displacement while landing
range
When projection velocity is constant, greater relative projection height translates to __
longer flight time and greater horizontal displacement of the projectile
In kinematics, the magnitude of projection velocity is known as __
projection speed
There are relationships among projection speed, height, and angle, such that when one is shifted closer to what would theoretically be optimal, another moves farther away from optimum. Why is this statement true?
because human anatomy dictates certain constraints on real-life application of theories
A projectile’s range is __
the product of it horizontal speed and flight time
The difference between projection height and landing height of a projectile is known as its __ __ __
relative projection height
T/F: When the human body is the projectile during a jump, high takeoff speed serves to constrain the projection angle that can be achieved.
True
