Which of the following is a correct measure of velocity?a)30 sb)30 m/s...
Velocity is a vector quantity, which means it has both magnitude and direction. To correctly measure and describe velocity, you need both these components.
Here’s the analysis of the provided options:
30 s: This is a measure of time, not velocity.
30 m/s: This is a measure of speed, not velocity, because it does not include a direction.
30 South: This describes a direction but lacks the magnitude (speed), so it is not a complete measure of velocity.
30 m/s, South: This provides both magnitude (30 m/s) and direction (South), making it a complete measure of velocity.
So, the correct measure of velocity is:
4. 30 m/s, South
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Which of the following is a correct measure of velocity?a)30 sb)30 m/s...
**Explanation:**
Velocity is a measure of the rate at which an object changes its position. It is a vector quantity, which means it has both magnitude and direction. The magnitude of velocity is the speed of the object, and the direction indicates the direction of motion.
**Options:**
a) 30 s: This is a measure of time, not velocity. The unit "s" represents seconds, which is a unit of time.
b) 30 m/s: This is the correct measure of velocity. The unit "m/s" represents meters per second, which is a measure of speed in a specific direction.
c) 30 South: This is not a valid measure of velocity. "South" represents a direction, but it does not provide information about the magnitude or speed of the object.
d) 30 m/s, South: This is the correct measure of velocity. It includes both the magnitude (30 m/s) and the direction (South). The unit "m/s" represents speed, and the word "South" indicates the direction of motion.
**Conclusion:**
The correct measure of velocity is option 'D' - 30 m/s, South. This measure includes both the magnitude (speed) and the direction of the object's motion.
Which of the following is a correct measure of velocity?a)30 sb)30 m/s...
D is the right answer because velocity is a vector which means we should mention both the magnitude nd direction soooo option d is the right answer