

InterviewSolution
Saved Bookmarks
1. |
Solve This ; Mods And Stars★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. |
Answer» <html><body><p><strong>Answer:</strong></p><p>11065.47 km/h</p><p><strong>Explanation:</strong></p><h3><strong><u>Given </u></strong><strong><u>-</u></strong></h3><p></p><ul><li><a href="https://interviewquestions.tuteehub.com/tag/radius-1176229" style="font-weight:bold;" target="_blank" title="Click to know more about RADIUS">RADIUS</a> of the circular <a href="https://interviewquestions.tuteehub.com/tag/orbit-1138163" style="font-weight:bold;" target="_blank" title="Click to know more about ORBIT">ORBIT</a> (<a href="https://interviewquestions.tuteehub.com/tag/r-611811" style="font-weight:bold;" target="_blank" title="Click to know more about R">R</a>) = 42250 km.</li><li>Time = 24 hours.</li></ul><p></p><h3><strong><u>To </u></strong><strong><u>find </u></strong><strong><u>-</u></strong></h3><p></p><ul><li>Speed of the <a href="https://interviewquestions.tuteehub.com/tag/artificial-363964" style="font-weight:bold;" target="_blank" title="Click to know more about ARTIFICIAL">ARTIFICIAL</a> <a href="https://interviewquestions.tuteehub.com/tag/satellite-1195060" style="font-weight:bold;" target="_blank" title="Click to know more about SATELLITE">SATELLITE</a>.</li></ul><p></p><h3><strong><u>Solution</u></strong><strong><u> </u></strong><strong><u>-</u></strong></h3><p></p><p>Circumference of the circular orbit = 2πR</p><p>→ Circumference = 2 × 3.14 × 42250</p><p>→ Circumference = 265571.42 km</p><p></p><p>Now, Speed of the satellite = circumference/time</p><p>→ Speed of the satellite = 265571.42/24</p><p>→ Speed of the satellite = 11065.47 km/h</p></body></html> | |