# Civil Engineering - Applied Mechanics - Discussion

### Discussion :: Applied Mechanics - Section 3 (Q.No.45)

45.

A satellite is said to move in a synchronous orbit if it moves at an altitude of 36, 000 km with a maximum velocity of about

 [A]. 7000 km per hour [B]. 8000 km per hour [C]. 9000 km per hour [D]. 10, 000 per hour [E]. 11, 000 km per hour.

Explanation:

No answer description available for this question.

 Ruturaj Patil said: (Aug 27, 2018) How to solve this?

 Twinkle Vinu said: (Apr 13, 2019) Distance to be covered by the satellite = (equitorial radius of earth + 36000)* 2π. Time for covering this distance = 24 hrs (geosynchronous satellite), Required velocity= distance/ time = 11000 km/h approx.

 Jinish Patel said: (Dec 10, 2019) A geosynchronous satellite is a satellite in geosynchronous orbit, with an orbital period the same as the Earth's rotation period (24 hours). Such a satellite returns to the same position in the sky after each sidereal day, and over the course of a day traces out a path in the sky so T=24 hours. Distance covered by any satellite = (radius of the earth+traveling distance by satellite)*2*3.14. =(6,371 km+36000)x2x3.14. =266089.88 km. Velocity= distance/time. = 266089/24. = 11,087 km/hr. Says 11000 km/hr.