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2015-10-14T18:00:14+05:30

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The statement is false. When the satellites revolves around the earth, the direction of velocity keeps changing. Since the direction is changing, the velocity is changing. So velocity is not constant.

In other words, there is centripetal acceleration of the satellite. hence velocity is not constant.
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2015-10-14T19:16:40+05:30

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
An artificial satellite in general can be thought of travelling in a circular orbit, for simplicity sake, around Earth.  Then its velocity is constant in magnitude and it varies continuously in direction.

In a circular orbit, if you mean the magnitude of velocity -- it is a constant.

In reality the artificial satellites revolve in an elliptical orbit,  then the speed as well as the direction change continuously.  The speed is largest when the satellite is nearest and lowest when the satellite is farthest.


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