tantalic4444 tantalic4444

23-04-2020
Mathematics

contestada

Can you explain it and help me out please

Can you explain it and help me out please class=

Respuesta :

SvetkaChem SvetkaChem

23-04-2020

Answer:

D. 5.0

Step-by-step explanation:

When the ball hit the ground, height h =0

So,

h= -4.9t² + 25t

0 = -4.9t² +25t

t(-4.9t+25)=0

t=0 (start) , and -4.9t+25=0, 4.9t =25, t≈5.1(finish)

D.5.0

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