8.) Determine the coefficient of restitution for each of the following objects d

Question

8.) Determine the coefficient of restitution for each of the following objects dropped from a height of 2 meters onto a wooden floor:
a. Tennis ball-
b. Racquetball-
c. Golf ball-
d. Soccer ball-
e. Baseball-
Concrete floor:
a. Tennis ball-
b. Racquetball-
c. Golf ball-
d. Soccer ball-
e. Baseball-
Asphalt Tile:
a. Tennis ball-
b. Racquetball-
c. Golf ball-
d. Soccer ball-
e. Baseball-
Artificial Turf:
a. Tennis ball-
b. Racquetball-
c. Golf ball-
d. Soccer ball-
e. Baseball-
Tumbling Mat:
a. Tennis ball-
b. Racquetball-
c. Golf ball-
d. Soccer ball-
e. Baseball-

14.) In each of the following movement patterns, indentify the nature of the motion for each phase. State the underlying mechanical objectives and describe what must occur to achieve optimum results. Consider carefully the application of linear mechanical principles.
Front crawl stroke -
Bench press -
High jump -

Explanation / Answer

The coefficient of restitution (COR) of two colliding objects is a fractional value representing the ratio of speeds after and before an impact, taken along the line of the impact. Pairs of objects with COR = 1 collide elastically, while objects with COR < 1 collide inelastically. For a COR = 0, the objects effectively "stop" at the collision, not bouncing at all. It seems al of them corfloorAsphalt Tile> wooden floor> Tumbling Mat>Artificial Turf:

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