Please Help! Physic question

Physics
Tutor: None Selected Time limit: 1 Day

A satellite is orbiting the earth just above its surface. The centripetal force making the satellite follow a circular trajectory is just its weight, so its centripetal acceleration is about 9.81 m/s2 (the acceleration due to gravity near the earth's surface). If the earth's radius is about 6370 km, how fast must the satellite be moving? How long will it take for the satellite to complete one trip around the earth?

May 4th, 2015

we need to determine the distance traveled by the satellite in one hour 

Using the information given, centripetal acceleration is 9.81m/s2 which can be converted to 35.30394km/h

so that means in in one hour it travels 35.30394 km...

1 km is traveled in what time?

=0.0283hours to travel one km

circumference of the earth=40,008km from north pole to  south pole

0.0283 hrs cover 1 km

? ........................40,008km

1,133.245 hours!!   convert to days by dividing with 24

=47 days 5 hours 2 mins and 24 sec

May 4th, 2015

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May 4th, 2015
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