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Mathematics 9 Online
OpenStudy (anonymous):

a 25-ib block of ice is on a frictionless metal ramp that is inclined 35 degrees to the horizontal. with what force must you push on the ice to prevent it from sliding down the ramp.

OpenStudy (zpupster):

F=ma force -mass*acceleration F=? m=25lb a = g (sin35degrees) good explanation here: http://zonalandeducation.com/mstm/physics/mechanics/forces/inclinedPlane/inclinedPlane.html

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