Uniform Accelerated Motion

Like a spitting image of two, similar but different. This proverb says, apparently in learning physics, the motion of matter straight twin brother are nearly the same in everyday applications. On a uniform rectilinear motion, the motion of objects having a straight line trajectory, but the experienced speed of valuable objects remain. While in the uniformly accelerated motion (uniformly accelerated motion), the motion of objects have trajectories are straight lines as well, but the pace of change experienced by objects on a regular basis every time.

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           In the uniformly accelerated motion, the motion of objects can undergo acceleration or deceleration. Accelerated motion of the so-called accelerated uniformly accelerated motion, whereas movement slowing called uniformly accelerated motion is slowed down.
           If we are cycling, which would often come to a decrease or an uphill road. When we see a declining path, bicycle run by itself without having to pedal or brake. Eventually, it will increase the speed of the bike quickly. If we know there are free falling coconuts from the tree. Both are examples of application of uniformly accelerated motion in everyday life.
           To investigate the presence of uniformly accelerated motion the same when we investigate the existence of uniform rectilinear motion, using the ticker timer. Mathematically acceleration produced by objects which have a uniformly accelerated motion or uniformly accelerated motion can be formulated as follows:

                                                                     a = Δv / t = (vt – v0) / t

with          a    = acceleration (m/s2)
              Δv    = change in initial and final velocity (m/s)
                vt    = final velocity (m/s)
               vo    = initial velocity (m/s)
                  t    = time (s)

          In uniformly accelerated motion there is agreement that the sign is used to simplify the problem in analyzing the results of a uniformly accelerated motion of the material produces an acceleration (+) or acceleration (-), as follows:
- If the acceleration (+) is accelerated uniformly accelerated motion direction of the velocity or acceleration
- If the acceleration (-) is uniformly accelerated motion is slowed down or accelerated in contrast to the
   speed

         Examples of application of uniformly accelerated motion of matter as a material with a simple calculation exercises that can help us to practice:

A child with the use of roller skates glide on a declining path, with initial velocity 20 m/s. After 10 seconds, its speed to 35 m / s. Calculate the acceleration!Completion:
Note:
               vo    = 20 m/s
                vt    = 35 m/s
      t    = 10 s
Asked:      a ?
Answer:        a = (vt – v0) / t = (35 – 20) / (10) = 15 / 10 = 1,5 m/s^2

Thus, the child slid to the acceleration of 1,5 m/s^2

A motorcycle that is moving at a speed of 40 m / s braking with deceleration 2 m/s^2. How long the bike is moving up the speed to 10 m / s and up to stop?
Completion:
a.   The time required to reach speeds of 10 m/s
      Note:
                        vo    = 40 m/s
                         vt    = 10 m/s
                          a    = - 2 m/s2
      then:
                      a       = (vt – v0) / t
                -2 m/s^2   = (10 – 40) / t
      t    = (- 30) / (- 2)
                  t    =   15 s
     Thus, the time required to reach speeds of 10 m /s is a 15 second
b. The time it takes to stop
     Note:                vo    = 40 m/s
                               vt    = 0 m/s
                                a    = - 2 m/s2
     then :
                        a       = (vt – v0) / t
                  -2 m/s^2 = (0 – 40) / t
                            t    = (- 40) / (- 2)
                            t    =   20 s
     Thus, the time required of the motorbike to stop since conducted the braking is 20 seconds.

         What will happen after the above exercises, the brain is so dilute it? We multiply train yourself to do physics problems, then we will better understand the concepts being studied.