At a football tryout, a player runs a 40-yard dash in t₂ = 4.15 seconds. If the reaches his maximum speed at the 15-yard mark L₁ with a constant acceleration and then maintains that speed for the remainder of the run, determine his acceleration over the first 15 yards, his maximum speed, and the time duration of the acceleration.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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At a football tryout, a player runs a 40-yard dash in t₂ = 4.15 seconds. If the reaches his maximum speed at the 15-yard mark L₁ with a
constant acceleration and then maintains that speed for the remainder of the run, determine his acceleration over the first 15 yards,
his maximum speed, and the time duration of the acceleration.
t=0
Amswers:
4₁
His acceleration:
His maximum speed:
L₂
a =
V =
The time duration of the acceleration: t =
ft/sec²
ft/sec
sec
Transcribed Image Text:At a football tryout, a player runs a 40-yard dash in t₂ = 4.15 seconds. If the reaches his maximum speed at the 15-yard mark L₁ with a constant acceleration and then maintains that speed for the remainder of the run, determine his acceleration over the first 15 yards, his maximum speed, and the time duration of the acceleration. t=0 Amswers: 4₁ His acceleration: His maximum speed: L₂ a = V = The time duration of the acceleration: t = ft/sec² ft/sec sec
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