Physics · Relativity
For a relativistic point particle, the momentum is given by p = m0v√(1 - v2/c2), where v is its velocity measured by an inertial observer. The acceleration is in the same direction as the applied force:
- 1only when the force is neither parallel nor perpendicular to the velocity.
- 2never.
- 3always.
- 4only when the force is parallel or perpendicular to the velocity.✓
Correct answer
only when the force is parallel or perpendicular to the velocity.
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