Homework Help: physics

Posted by flay on Sunday, January 13, 2013 at 3:38am.

a block of ice released from rest at top of 400 m long ramp slides to the bottom in 2.20 seconds. what is the angle between the ramp and the horizontal

physics - Elena, Sunday, January 13, 2013 at 3:51am
s=at²/2
a=2s/t²

ma=mgsinα
sinα=a/g

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