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March 30, 2015

March 30, 2015

Posted by **gg** on Sunday, September 2, 2012 at 8:29pm.

- physics -
**Elena**, Monday, September 3, 2012 at 4:52pmh= v(oy) +gt²/2

v(oy)=( h/t )– (gt/2) = 7.83 m/s.

v(oy) =v(o) •cosα .

(a)

v(o) = v(oy)/cosα = 70.83/cos51.5 = 113.8 m/s.

(b) v(ox)=v(x) = v(o)sinα=

=113.8•sin51.5 =89.06 m/s

s=v(x) •t =89.06•6.4=570 m.

(c)

v(y) =v(oy) +gt =7.83 +9.8•6.4=70.55 m/s.

v(x) =89.06 m/s

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