Projection for Horizontal distance and accuracy

The total horizontal displacement of a projectile is called the ___

range

The ___ component remains relatively unchanged throughout the trajectory of the projectile.

horizontal

The range of the projectile depends upon__ and __

initial velocity and flight time

The flight time depends on the projection __ and relative projection __.

angle and height

The ___ of a projectile is affected by both the horizontal and vertical components of the original velocity vector.

horizontal range

If the relative projection height is equal to zero, the optimal angle for horizontal projection at a given projection velocity is __ because this angle maximizes both the vertical and horizontal components.

45 degrees

For projection of accuracy, when analyzing any skill, one must decide the appropriate balance of projection __ and projection __.

projection angle and velocity

A __ projection angle creates a horizontal component of greater magnitude, but a smaller total flight time

smaller

A greater projection angle creates a smaller horizontal component, but a greater total flight time. Therefore, the optimal angle for horizontal projection at a given projection velocity is ___ because this angle maximizes both the vertical and horizontal components.

45 degrees

The greater the ___ the greater the magnitudes of both the horizontal and vertical components of the initial velocity vector.

projection velocity

In terms of projecting for accuracy, the ___ becomes the most important factor.

projection angle

When velocity is held constant, ___ determines the optimal projection angle.

relative projection height

As relative projection height increases, the optimal projection angle ___.

decreases

As relative projection height decreases, the optimal projection angle ___

increases

This horizontal energy is converted to ___ energy with a strong "plant" of the jumping leg.

verticle

In the high jump/pole vault the ___ changes as the body "changes shape" to clear the bar.

center of mass

The center of mass will be ___ the bar at times.

below

For the long jump a fast run-up develops __ energy.

horizontal

The jumping leg for a long jump plants to redirect the energy __.

vertically

For the long jump: ___ velocity is more important than the angle of launch.

horizontal

For the long jump the center of mass is ___ on landing than takeoff.

lower

Due to relative projection height, the optimum launch angle should be 42 degrees, but elite throwers launch at ___ degrees.

30-40 degrees

It is easier to develop __ velocity than ___.

horizontal velocity than vertical

The trade-off for launching above 40 degrees is a significant loss of ___ velocity.

horizontal

Flexibility allows force application for a ___ time

longer

You are analyzing the patient's golf swing at the ankle and knee joint only. This is considered a _____ kinetic chain because it has _____ or less links

simple / two

The quarterback throws the football... The throwing arm of the quarterback is considered an _____ kinetic chain because it is not attached to anything and moves uninhibited. The quarterback's hand is considered a _____ segment in relation to his shoulder.

open / distal

The tennis player performs a split step to return the ball. The split step can be described as planting both feet on the floor in order to effectively return the tennis ball. By performing the split step and both feet contacting the floor, this is categorized as a _____ kinetic chain. The player's feet are considered _____ compared to the hips.

closed / distal

(T/F) Most projections of an object (basketball, football, baseball, etc) involve the open simple kinetic chain.

False

Just PRIOR to releasing the baseball, what two factors will affect the flight path of the ball?

projection angle and velocity

AFTER releasing the baseball, the flight path will be affected by?

gravity

You are competing with your classmates to optimize the "range" of your throw. What is "range" describing and what are the major factors that affect the range of the throw?

Range describes the horizontal distance of a projectile.

The major factors affecting this is initial velocity and flight time which depends on the projection angle and relative projection height.

In the second competition, you are attempting to optimize the "height" of your throw. What is "height" describing and what are the major factors that affect the height of the throw?

The height of your throw describes the maximum vertical distance a projectile reaches. The major factors affecting height are projection velocity, angle, and gravity.

The golfer is waiting for the weather conditions to be optimal because she understands that air resistance can affect her shot based on ___and ___.

mass (of the ball) and flight time