Heather rolls a marble over sandpaper and then over a flat table. Which statement best describes the observations she made?
(A)When the marble is pulled, the friction on the table is greater.
(B) When the marble is pushed, the friction is greater on the sandpaper.
(C)The amount of friction is about the same on both surfaces.
(D)The force of gravity pulling the marble lessens the friction between the surfaces.
Answers
Answered by
37
Answer:
answer is B
Explanation:
Sand paper has many irregularities, so there will be more friction acting on the marble
Answered by
5
Answer:
B
Explanation:
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