On which surface is the student unable to apply enough force to overcome the force of friction

He concluded that a heavier object dropped from the same height as a lighter object will land

What is the perimeter of trapezoid jklm? + units 2 + + units 9 + units 9 + + units

Drag the tiles to the boxes to form correct pairs. not all tiles will be used. match each set of vertices with the type of quadrilateral they form.