Physics · Uniform Circular Motion and Acceleration
A car moves along a circular track at a constant speed. Why is its acceleration non-zero despite having a constant speed?
- 1Its kinetic energy increases continuously.
- 2The direction of its velocity changes continuously.✓
- 3The magnitude of its velocity changes continuously.
- 4The mass of the car varies during the motion.
Correct answer
The direction of its velocity changes continuously.
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