Physics Motion in straight line

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Motion in straight line

Uniform Motion

Uniform motion is the kind of motion in which a body covers equal distances in equal intervals of time. It does not matter how small the time intervals are, as long as the distances covered are equal.

If a body is involved in rectilinear motion and the motion is uniform, then the acceleration of the body must be zero.

Example: If the speed of a car is 10 m/s, it means that the car covers 10 meters in one second.

A motion which covers equal distance in equal interval of time is called a Uniform motion.

The above graph shows, in every one second, there is a displacement of `10m.` The body going with constant increase in velocity in equal interval of time is also the uniform motion. The slope of displacement-time graph for uniform motion is constant and gives constant velocity.

`s l o p e = (dY)/(dx)` = displacement /time

`V = d/t`

Uniform motion is the kind of motion in which a body covers equal distances in equal intervals of time. It does not matter how small the time intervals are, as long as the distances covered are equal.

If a body is involved in rectilinear motion and the motion is uniform, then the acceleration of the body must be zero.

Example: If the speed of a car is 10 m/s, it means that the car covers 10 meters in one second.

A motion which covers equal distance in equal interval of time is called a Uniform motion.

The above graph shows, in every one second, there is a displacement of `10m.` The body going with constant increase in velocity in equal interval of time is also the uniform motion. The slope of displacement-time graph for uniform motion is constant and gives constant velocity.

`s l o p e = (dY)/(dx)` = displacement /time

`V = d/t`

Non Uniform motion

Non Uniform motion on the other hand is the kind of motion in which a body cover unequal distances in equal distances of time, no matter how small the time intervals.

Example: If a car covers 10 meters in first two seconds, and 15 meters in next two seconds.

If a body is involved in rectilinear motion, and if the motion is non-uniform, then the acceleration of the body must be non-zero.

Now, people usually do confuse uniform motion with uniform acceleration. If a body is having some uniform or constant acceleration (in rectilinear motion), it means that the body-s speed is changing every second, which means the motion can-t be uniform.

The V-t graph for uniform motion gives the constant acceleration. The slope of uniform motion of V-t graph gives acceleration.
`S l o p e = (dY)/(dX) = (dv)/(dt),` gives acceleration. The SI unit is `m/s^2.`

Non Uniform motion on the other hand is the kind of motion in which a body cover unequal distances in equal distances of time, no matter how small the time intervals.

Example: If a car covers 10 meters in first two seconds, and 15 meters in next two seconds.

If a body is involved in rectilinear motion, and if the motion is non-uniform, then the acceleration of the body must be non-zero.

Now, people usually do confuse uniform motion with uniform acceleration. If a body is having some uniform or constant acceleration (in rectilinear motion), it means that the body-s speed is changing every second, which means the motion can-t be uniform.

The V-t graph for uniform motion gives the constant acceleration. The slope of uniform motion of V-t graph gives acceleration.
`S l o p e = (dY)/(dX) = (dv)/(dt),` gives acceleration. The SI unit is `m/s^2.`

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