Java Physics

 

kinematics

Kinematics of 1-D Uniformly Accelerated Motions

  • Here, 'displacement' refers to that from the starting position.
  • When 'Edit v-t graph' is selected, the v-t graph is capable to be changed by dragging the red corner points on the graph upward or downward.
  • The slope of displacement-time graph is velocity; the slope of velocity-time graph is acceleration. Uniform acceleration is the case when the acceleration is a constant,i.e. the velocity changes at a constant rate.
  • Negative acceleration is usually called "deceleration". In fact, we need both the directions of velocity and acceleration to determine whether the object is speeding up or slowing down. The following table summarizes the four cases:
Velocity Acceleration Status
Positive Positive Real acceleration
(moving in the positive direction and speeding up)
Positive Negative Real deceleration
(moving in the positive direction and slowing down)
Negative Positive Real deceleration
(moving in the negative direction and slowing down)
Negative Negative Real acceleration
(moving in the negative direction and speeding up)

In short, object slows down when the acceleration is opposite to the velocity.

 

 

Internal Links :

Newton's first law of motion (Applet)

Applying force to object (Applet)

Spring-Mass oscillator (Kinematics) (Applet)

Run Applet Online

Run on Java-enabled web browsers by adding the URL https://ngsir.netfirms.com in the Exception Site List in your
Java Control Panel settings. But, whenever you do this, you must ensure the site is safe.
(Web Safety Checker: Scamadviser, Norton, Sucuri, Google).

Download Executable Jar File

Run outside of the browser by pressing 'Enter' or double-clicking the Jar file

 

 

 

Author and Copyright:

Chiu-king Ng

Feedback/Contact:

feedbackXY@phy.hk, where XY is the prime number following 23

Mirror Site:

http://phy.hk

Last Update:

31-5-2017

Java logo