The length of the of a particle is equal to the magnitude of the displacement of that particle. Shape of the path possible is:
Correct answer: D. Straight line
- A. Area
- B. Area of a circle
- C. Parabola
- D. Straight line
Explanation
The following is the solution: The statement "the length of a particle is equal to the magnitude of the displacement of that particle" implies that the particle's path is along a straight line. In this case, the length of the particle's path (i.e., the distance it travels) is equal to the magnitude of its displacement (i.e., the shortest distance between the initial and final positions), and this occurs when the particle moves in a straight-line path with no change in direction. A straight line represents the most direct path between two points and fulfills the condition mentioned in the statement.
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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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