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Physics

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A brick of mass 1.0 kg slides down an ice roof inclined at 30 degrees with respect to the horizantal. If the brick starts from rest, how fast is it moving when it reaches the edge of the roof 0.90s later? Ignore friction

  • Physics -

    force down the plane: mgSinTheta

    force=ma solve for a.

    then, vf= a*time

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