Jasten
26.08.2021 •
Mathematics
A classic physics problem states that if a projectile is shot vertically up into the air with an initial velocity of 177 feet per second from an initial height of 133 feet off the ground, then the height of the projectile, h, in feet, t
seconds after it's shot is given by the equation:
h=−16t^2+177t+133
Find the two points in time when the object is 172 feet above the ground. Round your answers to the nearest hundredth of a second (two decimal places).
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Ответ:
105 m
Step-by-step explanation:
distance/time = (63 m)/(3 s) = d/(5 s)
Multiplying by (5 s) gives the distance d as ...
d = (5 s)(63 m)/(3 s) = 105 m
An ostrich can run 105 m in 5 seconds.