Para resolver este problema es necesario aplicar los conceptos de Fuerza, dados en la segunda Ley de Newton y el concepto de Trabajo, como expresión de la fuerza necesaria para realizar una actividad en una distancia determinada.
El trabajo se define como
W = F*d
Where,
F = Force
d = Distance
At the same time we have that the Force by second's Newton law is equal to
F = mg
Where,
m = mass
g = Gravitational acceleration
PART A) Using our values and replacing we have that
PART B) Using Newton's Second law we have that,
Answer:
Explanation:
1 mile=5280 ft
1 hour=3600 seconds
Changing speed from mi/h to ft/s
Time of flight,
From fundamental kinematics equations
where g is acceleration due to gravity whose value is taken as 32.2 ft/s2 and h is the distance
By substitution