Mathematics: Syyedah throws a baseball with an initial velocity of 30 meters per second from a roof at an initial height of 75 meters. write an equation to model this scenario. how long does it take the ball to reach the ground? use algebra to find your answer. (5 pts)

Syyedah throws a baseball with an initial velocity

Ответ:

InfinityVicky

04.01.2022

Initial velocity: v o = 30 m/s
h = 75 m
h = v o * t + g * t² / 2
75 = 30 · t + 9.8 · t² / 2
75 = 30 t + 4.9 t²
An equation is: y = 4.9 t² + 30 t - 75
4.9 t² + 30 t - 75 = 0
$t_{12}= \frac{-30+/- \sqrt{900+1470} }{9.8}= \\ =\frac{-30+48.68}{9.8}$
t = 1.9 s

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Ответ:

kwilly60

08.06.2022

Mathematics

The answer is B. $18.00 X 0.30=$5.40 you then subtract the 5.40 from 18.00, 18.00-5.40 =$12.60, you then multiply $12.60 x 0.08= 1.01 rounded, then you add 12.60 = 1.01 = $13.61

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Syyedah throws a baseball with an initial velocity of 30 meters per second from a roof at an initial height of 75 meters. write an equation to model this scenario. how long does it take the ball to reach the ground? use algebra to find your answer. (5 pts)

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