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Motion in Straight Line
Question
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A body is placed on smooth horizontal surface. If a force equal to its weight is applied in horizontal direction then with what acceleration it will accelerate?

Answer

Given that the force equal to the body's weight is applied in the horizontal direction. Therefore, the body will not accelearte. 

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Some More Questions From Motion in Straight Line Chapter

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Is absolute rest or absolute motion possible?

What is the most essential thing to study the motion of a body?

Can a body be always at rest in some frame?

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