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A car is moving with 20m/s velocity, another car is moving with a velocity of 50 m/s. What is the relative velocity of first car with respect to the second?
- a)30 m/s
- b)-30 m/s
- c)20 m/s
- d)25 m/s
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
A car is moving with 20m/s velocity, another car is moving with a velo...
Relative velocity is the velocity of an object with respect to another object. In this case, we need to find the relative velocity of the first car with respect to the second car.
Given:
Velocity of the first car = 20 m/s
Velocity of the second car = 50 m/s
To find the relative velocity, we can subtract the velocity of the second car from the velocity of the first car.
Relative velocity = Velocity of the first car - Velocity of the second car
Relative velocity = 20 m/s - 50 m/s
Relative velocity = -30 m/s
Therefore, the relative velocity of the first car with respect to the second car is -30 m/s.
Explanation:
- The negative sign indicates that the first car is moving in the opposite direction to the second car.
- The magnitude of the relative velocity is 30 m/s, which means that the first car is moving 30 m/s slower than the second car.
- Therefore, the answer is option 'B', -30 m/s.
Given:
Velocity of the first car = 20 m/s
Velocity of the second car = 50 m/s
To find the relative velocity, we can subtract the velocity of the second car from the velocity of the first car.
Relative velocity = Velocity of the first car - Velocity of the second car
Relative velocity = 20 m/s - 50 m/s
Relative velocity = -30 m/s
Therefore, the relative velocity of the first car with respect to the second car is -30 m/s.
Explanation:
- The negative sign indicates that the first car is moving in the opposite direction to the second car.
- The magnitude of the relative velocity is 30 m/s, which means that the first car is moving 30 m/s slower than the second car.
- Therefore, the answer is option 'B', -30 m/s.
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Community Answer
A car is moving with 20m/s velocity, another car is moving with a velo...
The formula for relative velocity is VR = Vector VA – Vector VB. Assuming the cars move in the same direction, the relative velocity = 20-50 = -30 m/s. The relative velocity of the second with respect to the first car is 30 m/s.
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