Class 9 Exam > Class 9 Questions > A body is said to be in non-uniform motion if...
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A body is said to be in non-uniform motion if it travels
- a)Equal distance in unequal interval of time
- b)Equal distance in equal interval of time
- c)Unequal distance in unequal interval of time
- d)Unequal distance in equal interval of time
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
A body is said to be in non-uniform motion if it travelsa)Equal distan...
Non Uniform motion is defined as the motion of an object in which the object travels with varied speed and it does not cover same distance in equal time intervals, irrespective of the time interval length.
Examples:
1. If a car covers 10 meters in first two seconds, and 15 meters in next two seconds.
2. The motion of a train.
Most Upvoted Answer
A body is said to be in non-uniform motion if it travelsa)Equal distan...
**Explanation:**
To understand why the correct answer is option D, let's first define what uniform and non-uniform motion mean.
**Uniform Motion:**
Uniform motion refers to the motion of an object in which it covers equal distances in equal intervals of time. In other words, the speed of the object remains constant throughout its motion.
**Non-Uniform Motion:**
Non-uniform motion refers to the motion of an object in which it covers unequal distances in equal intervals of time or equal distances in unequal intervals of time. In this case, the speed of the object is not constant and can vary.
Now, let's look at each option and determine which one represents non-uniform motion:
a) Equal distance in unequal interval of time: This option does not represent non-uniform motion because the distance covered by the object is equal, indicating a constant speed. The only variation is in the time intervals, but the distance covered remains the same.
b) Equal distance in equal interval of time: This option represents uniform motion because the object covers equal distances in equal intervals of time. This implies a constant speed.
c) Unequal distance in unequal interval of time: This option can represent both uniform and non-uniform motion, depending on the specific values. If the object covers unequal distances in unequal intervals of time, but the ratios of distance to time intervals remain constant, it can represent uniform motion. However, if the ratios vary, it represents non-uniform motion.
d) Unequal distance in equal interval of time: This option represents non-uniform motion because the object covers unequal distances in equal intervals of time. This indicates a varying speed as the object covers different distances in the same amount of time.
Therefore, option D is the correct answer as it represents non-uniform motion.
To understand why the correct answer is option D, let's first define what uniform and non-uniform motion mean.
**Uniform Motion:**
Uniform motion refers to the motion of an object in which it covers equal distances in equal intervals of time. In other words, the speed of the object remains constant throughout its motion.
**Non-Uniform Motion:**
Non-uniform motion refers to the motion of an object in which it covers unequal distances in equal intervals of time or equal distances in unequal intervals of time. In this case, the speed of the object is not constant and can vary.
Now, let's look at each option and determine which one represents non-uniform motion:
a) Equal distance in unequal interval of time: This option does not represent non-uniform motion because the distance covered by the object is equal, indicating a constant speed. The only variation is in the time intervals, but the distance covered remains the same.
b) Equal distance in equal interval of time: This option represents uniform motion because the object covers equal distances in equal intervals of time. This implies a constant speed.
c) Unequal distance in unequal interval of time: This option can represent both uniform and non-uniform motion, depending on the specific values. If the object covers unequal distances in unequal intervals of time, but the ratios of distance to time intervals remain constant, it can represent uniform motion. However, if the ratios vary, it represents non-uniform motion.
d) Unequal distance in equal interval of time: This option represents non-uniform motion because the object covers unequal distances in equal intervals of time. This indicates a varying speed as the object covers different distances in the same amount of time.
Therefore, option D is the correct answer as it represents non-uniform motion.
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Community Answer
A body is said to be in non-uniform motion if it travelsa)Equal distan...
The right ans is d because in the case of uniform motion,an object travells equal distance in equal time interval.so if an object reaches point a in one second and point b in two seconds and c in three seconds....it is said to be in uniform motion.But in the case of non uniform motion,an object travells unequal distance in equal time intervels.so when an object arrives at a in 1second and at b in 3 seconds etc hoped you understood. plzz upvote if u liked it. regards Ananthasivan
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A body is said to be in non-uniform motion if it travelsa)Equal distance in unequal interval of timeb)Equal distance in equal interval of timec)Unequal distance in unequal interval of timed)Unequal distance in equal interval of timeCorrect answer is option 'D'. Can you explain this answer?
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