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# Rest and Motion

#### Summary

HD 9:34
LearnNext Lesson Video

HD 9:34
LearnNext Video

## Activity 1

phet.colorado has created an excellent java applet to describe the motion with respect to the position, displacement and acceleration. Using this we can recor the motion and also can replay the recorded motion.
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## Activity 2

walter-fendt.de has created the Java applet that shows a car moving with constant acceleration. Using this Java applet we can vary the values of initial position, initital velocity and acceleration. We choose the option "Slow motion."
• Three diagrams illustrate the motion of the vehicle
• Position x versus time t
• Velocity v versus time t
• Acceleration a versus time t
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### 1 . Examples of periodic and non-periodic motions

Examples of periodic motion:
1. The motion of the bob of the simple pendulum
2. Motion of a planet around the sun
3...

### 2 . what is the difference between uniform and non-uniform motion ? also give examples of both .

Uniform Motion:
If a body travels equal distances in equal time intervals of time  then the body is  said t...

### 3 . Motion of a needle of a sewing machine

Translator motion

thanks

### 5 . What are two differences between rectilinear and curvilinear motion?

In rectilinear motion the body travels in a straight line whereas in curvilinear motion the body travels in a curved path.

I...