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October 23, 2014

October 23, 2014

Posted by **Erin** on Thursday, January 26, 2012 at 5:54pm.

- physics -
**Damon**, Thursday, January 26, 2012 at 6:01pmVi = 35 sin 33.7 = 19.42 initial up

u = 35 cos 33.7 = 29.12 constant horizontal

v = Vi - g t

v = 19.42 - 9.8 t

when v/u = tan 16.3 we are there

v/29.12 = .2924

v = 8.515

so

8.515 = 19.42 - 9.8 t

t = 1.11 seconds

- physics -
**drwls**, Thursday, January 26, 2012 at 6:06pmCompute the time that it takes for the vertical velocity component Vy to decrease from 35sin33.7 to 35cos33.7*tan16.3 .

(The horizontal velocity component remains 35cos33.7)

That time will be the difference of those numbers, divided by g.

(19.420 - 8.173)/9.81 = ___ s

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