A ball rolls off the top of stair way with a horizontal velocity of magnitude 2 m/s.The steps are 10 cm high and 20 cm wide. if g =10 m/s^2 ,then the ball hits first the edge of
1) first step
2) second step
3) third step
4) fourth step
1
Expert's answer
2013-10-22T06:49:19-0400
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