Explore Related Concepts


Examples of Uniform Linear Motion
We will first describe the definition of motion before moving on to the examples of uniform linear motion and its definition.Consider a person walking on a straight footpath. The person covers 1 kilometer in half an hour and 2 kilometers in the next half hour. Now this will not be uniform linear motion. This will be nonuniform linear motion because although the person is moving in a straight line however his speed is not constant. So if there is no external agent which influences the speed of a moving body the body will hence continue to be in the state of motion with the constant speed. However this does not happen because we have free agents like force of friction which come in to play during such phenomena.
Consider a boy running a race of 800 meters. This boy completes the first lap of this race in three minutes. Now the path is straight and after every 400 meter the person hands over the baton to another person. So let us assume that in the 800 meters race the race is completed in 6 minutes. So this is an example of uniform linear motion as the time taken to complete both the 400 meter distances is constant and hence the speed can be considered constant. As the speed is constant we do not have any acceleration and so this is uniform linear motion.
Best Results From Wikipedia Yahoo Answers Youtube
From Wikipedia
Linear motion is motion along a straight line, and can therefore be described mathematically using only one spatial dimension. It can be uniform, that is, with constant velocity (zero acceleration), or nonuniform, that is, with a variable velocity (nonzero acceleration). The motion of a particle (a pointlike object) along the line can be described by its position x, which varies with t (time). Linear motion is sometimes called rectilinear motion.
An example of linear motion is that of a ball thrown straight up and falling back straight down.
The average velocity v during a finite time span of a particle undergoing linear motion is equal to
 v = \frac {\Delta d}{\Delta t}.
The instantaneous velocity of a particle in linear motion may be found by differentiating the position x with respect to the time variable t. The acceleration may be found by differentiating the velocity. By the fundamental theorem of calculus the converse is also true: to find the velocity when given the acceleration, simply integrate the acceleration with respect to time; to find displacement, simply integrate the velocity with respect to time.
This can be demonstrated graphically. The gradient of a line on the displacement time graph represents the velocity. The gradient of the velocity time graph gives the acceleration while the area under the velocity time graph gives the displacement. The area under an acceleration time graph gives the velocity.
Linear motion is the most basic of all motions. According to Newton's first law of motion, objects not subjected to forces will continue to move uniformly in a straight line indefinitely. Under everyday circumstances, external forces such as gravity and friction will cause objects to deviate from linear motion and can cause them to come to a rest.
For linear motion embedded in a higherdimensional space, the velocity and acceleration should be described as vectors, made up of two parts: magnitude and direction. The direction part of these vectors is the same and is constant for linear motion, and only for linear motion
From Yahoo Answers
Answers:The movement may be sustaining a constant speed, but the body receives a constant acceleration: the centripetal force. If this force is of constant amplitude, it however changes constantly in direction!
Answers:Motion implies momentum, which implies velocity. Linear implies a straight line. Accelerating implies changing velocity. And uniform implies constancy. So, when a body moves in a straight line and accelerates at a constant rate, the body is said to have an uniformly accelerated linear motion.
Answers:Uniform linear motion is motion in which the velocity is unchanged in magnitude and direction. In other words, its acceleration is 0. The equations of that motion are: a = 0 v = constant x = vt + x0 (x zero is the initial coordinate) Uniformly accelerated/decelerated motion is motion in which the magnitude of the velocity increases/decreases uniformly over time, that is it changes the same amount in 1 unit of time at every moment. This motion has a constant acceleration a. The motion is uniformly accelerated or uniformly decelerated depending on whether a > 0 or a < 0. The equations of that motion are: a = constant, positive or negative, but different from 0. v = at + v0 (v zero is the initial velocity) . . . . . . . . (v  v0) / t is the same at all time t x = at + v0t + x0
Answers:First of all this is not a uniform circular motion problem. The train is slowing down. You are asked the to find the acceleration at a particular instant. Acceleration is a vector, meaning that it has magnitude and direction. The linear acceleration is just v(final)  v(initial) divided by the time. You have that information (although you need to get the units right). The centripetal acceleration is v(squared) divided by r. You also have that information. Because these two accelerations are perpendicular to each other, the magnitude of the overall acceleration is the square root of the the sum of the squares of each acceleration. (Sorry about not having mathematical symbols available here). To get the direction of the acceleration, use trigonometry of the right triangle
From Youtube