Homework Help: physics

Posted by Sally on Wednesday, October 3, 2012 at 9:42am.

A student is skateboarding down a ramp that is 8.48 m long and inclined at 16.4ｰ with respect to the horizontal. The initial speed of the skateboarder at the top of the ramp is 3.94 m/s. Neglect friction and find the speed at the bottom of the ramp.

physics - Elena, Wednesday, October 3, 2012 at 2:26pm
KE1 +PE = KE2
m夫₀²/2 + m蛭鰭 = m夫²/2
v=sqrt(v₀² + 2蛭鰭) =
= sqrt(v₀² + 2蛭不不inα)

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