Physics
Physics, 08.12.2020 06:00, npaslayoy1bzj

If an object remains at rest what must be true? A. the weight of the object must be zero.
B. a friction force must act on the object.
C. At least one normal or support force must act on the object.
D. The sum of all forces acting on the object must be zero.

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If an object remains at rest what must be true? A. the weight of the object must be zero.
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