a) A skier is accelerating down a 30.0° hill at a = 2.80 m/s2 (Fig. 3-36). What is the vertical component of her acceleration?
m/s2 down.
(b) How long will it take her to reach the bottom of the hill, assuming she starts from rest and accelerates uniformly, if the elevation change is 305 m?
s
2006-11-22 05:05:58 · 5 answers · asked by ckielblock18 1 in Science & Mathematics ➔ Physics
Here's the solution, sorry couldn't post the pic here :
http://i11.photobucket.com/albums/a189/mtarek16/soln.jpg
2006-11-22 05:43:38 · answer #1 · answered by M T 1 · 0⤊ 0⤋
it's easy if we have the picture and can tell where the 30 degrees is relative to. Either way, there are only two answers. One component is 1.4 m/s^2 and the other is 2.42 m/s^2
so t is either 20.87 seconds or 15.88 seconds
2006-11-22 13:46:41 · answer #2 · answered by SteveA8 6 · 0⤊ 0⤋
if you want a kid to do your homework at least admit it
2006-11-22 13:14:33 · answer #3 · answered by BillyG2 3 · 0⤊ 1⤋
no
2006-11-22 13:11:12 · answer #4 · answered by khafan 2 · 0⤊ 1⤋
no
2006-11-22 13:07:00 · answer #5 · answered by Marcos L 1 · 0⤊ 1⤋