At a football tryout, a player runs a 40-yard dash in t, = 4.70 seconds. If the reaches his maximum speed at the 14-yard mark L constant acceleration and then maintains that speed for the remainder of the run, determine his acceleration over the first 14 his maximum speed, and the time duration of the acceleration.

At a football tryout, a player runs a 40-yard dash in t, = 4.70 seconds. If the reaches his maximum speed at the 14-yard mark L constant acceleration and then maintains that speed for the remainder of the run, determine his acceleration over the first 14 his maximum speed, and the time duration of the acceleration.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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At a football tryout, a player runs a 40-yard dash in t, = 4.70 seconds. If the reaches his maximum speed at the 14-yard mark L, with a
constant acceleration and then maintains that speed for the remainder of the run, determine his acceleration over the fırst 14 yards,
his maximum speed, and the time duration of the acceleration.
t = 0
Amswers:
His acceleration:
i
ft/sec2
a =
His maximum speed:
i
ft/sec
The time duration of the acceleration: t=
i
sec

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