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An Artificial Satellite is Moving in a Circular Orbit of Radius 42250 Km. Calculate Its Speed If It Takes 24 Hours to Revolve Around the Earth. - Science

An artificial satellite is moving in a circular orbit of radius 42250 km. Calculate its speed if it takes 24 hours to revolve around the earth.

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Solution

Radius of the circular orbit, r = 42250 km

Time taken to revolve around the earth, t = 24 h

Speed of a circular moving object, `v=(pir)/t`

`=(2xx3.14xx42250)/24=265330/24=11055.4" km/h="`

If we want speed in kilometer per second then,

`=11055.4xx5/18`

`=3070.9444444" m/sec"`

`=3070.9444444/1000`

`=3.070" km/s"`

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APPEARS IN

NCERT Class 9 Science Textbook
Chapter 8 Motion
Q 10 | Page 113
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