1. I am having a lot of trouble solving this problem.

A satellite that is 4175 miles from the center of the earth, orbits with a period of 90 minutes. What is its centripetal acceleration?

I converted 4,175 mi into 6,717,575 m and 90 min into 5,400 sec.

For VT I got 7,816.25 m/sec.

And Ac = 49,111 mi/sec2

Help? I have no clue what I'm doing.  2.

3. deleted by god  4. Originally Posted by cityyy I am having a lot of trouble solving this problem.

A satellite that is 4175 miles from the center of the earth, orbits with a period of 90 minutes. What is its centripetal acceleration?

I converted 4,175 mi into 6,717,575 m and 90 min into 5,400 sec.

For VT I got 7,816.25 m/sec.

And Ac = 49,111 mi/sec2

Help? I have no clue what I'm doing.   , , so, the correct answer is , you were off by several orders of magnitude.  5. The radius of the earth is 3959 miles. The acceleration due to gravity on earth is 32 feet per second per second. The gravitational acceleration falls of according to the inverse square law. x=32*(3959/4175)2=28.77 feet per second per second, or .00545 miles/sec/sec.

When I do it xyzt's way I get .005652. Did you make an arithmetic error, xyzt?  6. Originally Posted by Gere i got 0.00014 mi/s*s .
Nope.   7. delete  8. So a would equal .0057mi/sec2 ?  9. Originally Posted by cityyy So a would equal .0057mi/sec2 ?  ,   10. Damn Im so stupid.  11. Originally Posted by Harold14370 The radius of the earth is 3959 miles. The acceleration due to gravity on earth is 32 feet per second per second. The gravitational acceleration falls of according to the inverse square law. x=32*(3959/4175)2=28.77 feet per second per second, or .00545 miles/sec/sec.

When I do it xyzt's way I get .005652. Did you make an arithmetic error, xyzt?
I calculated in my head, so it is possible that I made a numerical error, the numbers are very large. The symbolic result is , of course, correct.  Bookmarks
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