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Speed & Velocity Video Lecture | Science & Technology for UPSC CSE
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FAQs on Speed & Velocity Video Lecture - Science & Technology for UPSC CSE
| 1. What is the difference between speed and velocity? |  |
Ans. Speed is a scalar quantity that refers to "how fast an object is moving," while velocity is a vector quantity that refers to "the rate at which an object changes its position." In other words, velocity includes both the speed of an object and its direction of motion.
| 2. How is speed calculated? | |
Ans. Speed is calculated by dividing the distance traveled by an object by the time taken to cover that distance. The formula for speed is Speed = Distance / Time.
| 3. Is it possible for an object to have a high speed but low velocity? | |
Ans. Yes, it is possible for an object to have a high speed but low velocity. This occurs when an object is moving at a high speed but changing direction frequently. Since velocity takes into account both speed and direction, if the object changes direction frequently, the average velocity may be low even if the speed is high.
| 4. Can an object have a velocity without speed? | |
Ans. No, an object cannot have velocity without speed. Velocity is a measure of both the speed and direction of an object's motion. If an object is not moving (i.e., has zero speed), it does not have any velocity.
| 5. How is velocity different from average velocity? | |
Ans. Velocity refers to the rate of change of an object's position over time, including both its speed and direction. Average velocity, on the other hand, is the displacement of an object divided by the time taken. Displacement refers to the change in position of an object, taking into account the direction of motion. Therefore, average velocity provides information about the overall change in position of an object, whereas velocity includes both speed and direction at any given moment.
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Dec 19, 2024 Last updated |
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