cratsley321
26.07.2019 •
Mathematics
Point is at (3,2.5) and point b is at (3,1.4) on a coordinate grid the distance between the two p
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Ответ:
v=⌠a
v=gt+vi
h=⌠v
h=gt^2/2+vit+hi
So height as a function of time is:
h(t)=gt^2/2+vit+hi
g=-9.8m/s^2, vi=31m/s, hi=0 so
h(t)=-4.9t^2+31t
And it will hit the ground when h(t)=0 so
-4.9t^2+31t=0