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If the velocity of a body is reducing, it is said to have
- a)Negative acceleration
- b)Retardation
- c)Positive acceleration
- d)Both (a) and (b)
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
If the velocity of a body is reducing, it is said to havea)Negative ac...
Explanation:
When the velocity of a body is reducing, it means the body is slowing down. The rate at which the velocity is changing is called acceleration. Therefore, the body is said to be experiencing negative acceleration, also known as retardation.
Difference between acceleration and retardation:
Acceleration refers to the rate at which the velocity of a body changes when it is moving in a particular direction. It can be positive or negative depending on whether the velocity is increasing or decreasing.
Retardation, on the other hand, refers to the rate at which the velocity of a body is decreasing. It is always negative because it involves a decrease in velocity.
Examples of negative acceleration or retardation:
1. A car moving at a speed of 60 km/h slows down to a speed of 40 km/h in 10 seconds. The car is experiencing negative acceleration or retardation.
2. A ball thrown vertically upwards reaches a maximum height and then falls back to the ground. As it moves upwards, its velocity decreases until it comes to a stop at the maximum height. This is an example of negative acceleration or retardation.
Conclusion:
When the velocity of a body is reducing, it is said to be experiencing negative acceleration or retardation. This is because the body is slowing down, and the rate at which the velocity is changing is negative.
When the velocity of a body is reducing, it means the body is slowing down. The rate at which the velocity is changing is called acceleration. Therefore, the body is said to be experiencing negative acceleration, also known as retardation.
Difference between acceleration and retardation:
Acceleration refers to the rate at which the velocity of a body changes when it is moving in a particular direction. It can be positive or negative depending on whether the velocity is increasing or decreasing.
Retardation, on the other hand, refers to the rate at which the velocity of a body is decreasing. It is always negative because it involves a decrease in velocity.
Examples of negative acceleration or retardation:
1. A car moving at a speed of 60 km/h slows down to a speed of 40 km/h in 10 seconds. The car is experiencing negative acceleration or retardation.
2. A ball thrown vertically upwards reaches a maximum height and then falls back to the ground. As it moves upwards, its velocity decreases until it comes to a stop at the maximum height. This is an example of negative acceleration or retardation.
Conclusion:
When the velocity of a body is reducing, it is said to be experiencing negative acceleration or retardation. This is because the body is slowing down, and the rate at which the velocity is changing is negative.
Community Answer
If the velocity of a body is reducing, it is said to havea)Negative ac...
D option is right
when the velocity of a body is reducing the body posses negative acceleration or a force acting on opposite side.
when the velocity of a body is reducing the body posses negative acceleration or a force acting on opposite side.
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If the velocity of a body is reducing, it is said to havea)Negative accelerationb)Retardationc)Positive accelerationd)Both(a) and (b)Correct answer is option 'D'. Can you explain this answer?
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