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solve equations, and show work, please! use equation deltax= 1/2at^2 + vit= xf-xi to apply with...

solve equations, and show work, please!

use equation deltax= 1/2at^2 + vit= xf-xi to apply with equation yf= yi +1/2(-9.8)t^2 + viyt

yf= 0

yi= 10 m

viy=0

Once you find t, time , plug into the x motion, xf= xi + 1/2 (0) t^2 + vixt

xf= 10 m

xi= 0

then compute vi= vix

Please show work

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