If you push on your textbook so that it slides across the table at a constant velocity,Group of answer choicesthere must not be any forces acting on the book, otherwise it would accelerate.all of the forces acting on the book must be balanced.the book must be changing direction.none of the above.
Question
If you push on your textbook so that it slides across the table at a constant velocity,Group of answer choicesthere must not be any forces acting on the book, otherwise it would accelerate.all of the forces acting on the book must be balanced.the book must be changing direction.none of the above.
Solution
All of the forces acting on the book must be balanced.
Here's why:
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If a body is moving with a constant velocity, it means it's not accelerating or decelerating.
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According to Newton's First Law of Motion, an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
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Therefore, if the book is moving at a constant velocity, the forces acting on it (like your push, friction from the table, and gravity) must be balanced. If they weren't, the book would either speed up, slow down, or change direction.
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