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प्रश्न
When a car runs on a circular track with a uniform speed, its velocity is said to be changing. This is because ______.
विकल्प
the car has a uniform acceleration
the direction of car varies continuously
the car travels unequal time intervals.
the car travels equal distances in unequal time intervals
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उत्तर
When a car runs on a circular track with a uniform speed, its velocity is said to be changing. This is because the direction of car varies continuously.
Explanation:
Velocity is a vector quantity, which means it has both magnitude (speed) and direction. Even if the car is running on a circular track at a uniform speed, its direction changes continuously as it moves along the curve. This change in direction results in a change in velocity, even though the speed remains constant.
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