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Which of the following statements is correct?
- a)speed distance are scalar, velocity and displacement are vector
- b)speed distance are vector, velocity and displacement are vector
- c)speed and velocity are scalar, distance and velocity are vector
- d)speed and velocity are vector, distance and displacement are scalar
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
Which of the following statements is correct?a)speed distance are scal...
Statement: a) Speed and distance are scalar, velocity and displacement are vector.
Explanation:
- Scalar quantities are the ones that have only magnitude and no direction.
- Vector quantities are the ones that have both magnitude and direction.
Speed:
- Speed is a scalar quantity because it only tells us how fast an object is moving, without any information about its direction.
- For example, if a car is traveling at a speed of 60 km/h, it doesn't tell us in which direction the car is moving.
Distance:
- Distance is also a scalar quantity because it only tells us the magnitude of the interval between two points, without any information about the direction.
- For example, if you walk a distance of 5 kilometers, it doesn't tell us in which direction you walked.
Velocity:
- Velocity is a vector quantity because it tells us both the speed and direction of an object's motion.
- It is defined as the rate at which an object changes its position.
- For example, if a car is traveling at a velocity of 60 km/h in the north direction, it tells us both the speed (60 km/h) and the direction (north) of the car's motion.
Displacement:
- Displacement is also a vector quantity because it tells us both the magnitude and direction of an object's change in position.
- It is defined as the shortest distance and direction between the initial and final positions of an object.
- For example, if you walk a displacement of 5 kilometers north, it tells us both the magnitude (5 kilometers) and the direction (north) of your change in position.
Conclusion:
- Based on the definitions and explanations above, the correct statement is option 'a' which states that speed and distance are scalar quantities, while velocity and displacement are vector quantities.
Explanation:
- Scalar quantities are the ones that have only magnitude and no direction.
- Vector quantities are the ones that have both magnitude and direction.
Speed:
- Speed is a scalar quantity because it only tells us how fast an object is moving, without any information about its direction.
- For example, if a car is traveling at a speed of 60 km/h, it doesn't tell us in which direction the car is moving.
Distance:
- Distance is also a scalar quantity because it only tells us the magnitude of the interval between two points, without any information about the direction.
- For example, if you walk a distance of 5 kilometers, it doesn't tell us in which direction you walked.
Velocity:
- Velocity is a vector quantity because it tells us both the speed and direction of an object's motion.
- It is defined as the rate at which an object changes its position.
- For example, if a car is traveling at a velocity of 60 km/h in the north direction, it tells us both the speed (60 km/h) and the direction (north) of the car's motion.
Displacement:
- Displacement is also a vector quantity because it tells us both the magnitude and direction of an object's change in position.
- It is defined as the shortest distance and direction between the initial and final positions of an object.
- For example, if you walk a displacement of 5 kilometers north, it tells us both the magnitude (5 kilometers) and the direction (north) of your change in position.
Conclusion:
- Based on the definitions and explanations above, the correct statement is option 'a' which states that speed and distance are scalar quantities, while velocity and displacement are vector quantities.
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Community Answer
Which of the following statements is correct?a)speed distance are scal...
Yes speed and distance don't have any direction only magnitude that's why it's is scalar and velocity and displacement is vector with direction and magnitude
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