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Motion along a line is called

Correct answer: A. Motion in one dimension

  • A. Motion in one dimension
  • B. Motion in two dimensions
  • C. Motion in three dimensions
  • D. None of these

Explanation

The correct answer is 'Motion in one dimension' because motion along a line only requires a single coordinate to describe its position. This is distinct from 'Motion in two dimensions,' which involves a plane and requires two coordinates, and 'Motion in three dimensions,' which involves space and requires three coordinates. 'None of these' is incorrect since the correct option is provided.

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About Force and Motion

Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.

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