Physics · Motion in a Straight Line
An object moves along a straight line with an initial positive velocity (+u). Under a non-uniform negative acceleration, its velocity eventually becomes negative (−v). What does the negative final velocity signify?
- 1The object has permanently come to rest.
- 2The acceleration must have become positive at the final moment.
- 3The object is now moving backward relative to its initial direction of motion.✓
- 4The object is experiencing a constant negative acceleration.
Correct answer
The object is now moving backward relative to its initial direction of motion.
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