Question

Distinguish between uniform motion and none, uniform motion. Is uniformly Accelerated motion uniform motion? Give one example each of uniform and no uniform Motion.

Answer 1

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No.

So to get the difference let us understand what do we mean by uniform motion and uniform accelerated motion.

uniform motion

Where a body travels equal distance in equal interval of time or we can say motion where speed will be constant .

Uniform accelerated motion

Where a body travels with constant acceleration which means a body would have same change in velocity, so certainly it will not travel same distance.

So we can say uniform motion is different from uniform accelerated motion.

Uniform motion is the kind of motion in which a body covers equal distancesin equal intervals of time. It means that speed is constant.

If you accelerate when the motion is in 1 dimension i.e. in a straight line, the speed changes so you can't call it uniform motion even if the acceleration is uniform.

In case of a body moving in a circle with uniform speed, there is centripetal acceleration towards the centre which remains same in magnitude. This is called uniform circular motion.

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Answer 2

Answer:

UNIFORM MOTION

A body is said to be in uniform motion if it travels equal distances in equal intervals of time, no matter how small these time intervals may be. If we draw distance time graph for uniform motion then it will be straight line. For better understanding we can take an example, a car is running at a constant speed say 20 metres per second, will cover equal distances of 20 metres, every second, so its motion will be uniform.

NON - UNIFORM MOTION

A body is said to be in a non-uniform motion if it travels unequal distances in equal intervals of time. For example, if we drop a ball from the roof of a tall building, we will notice that it will cover unequal distances in equal intervals of time. Like, 5 metres in the 1st second, 15 metres in the 2nd second and so on. Thus, a freely falling ball will covers smaller distances in the first ‘1 second’ and larger distances in the later ‘1 second’ intervals. Therefore, we can say that the motion of a freely falling body is an example of a non-uniform motion. The distance-time graph of the non-uniform motion is a curved line. Non-Uniform motion is also known as accelerated motion.

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