Newton's laws do not hold good for particles:
Correct answer: B. Move with velocity comparable to velocity of Light
- A. At rest
- B. Move with velocity comparable to velocity of Light
- C. Moving slowly
- D. High velocity
Explanation
Newton's laws are adequate for speeds that are low compared with the speed of light. For very fast-moving objects relativistic mechanics developed by Einstein is applicable.
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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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