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Physics A Level question about satellites?

Explorer 38 has a mass of 200kg and circles the earth in orbit 1.5 times the radius of the earth. Taking g=9.8N/kg on the surface and no other information, use ratios to calculate the force in Newtons pulling on the satellite when placed in this orbit.

HELP PLEASE

2 Answers

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  • Dean
    Lv 6
    8 years ago
    Favorite Answer

    You have to bend the rules a bit (ignore the satellite mass) to firstly find the theoretical g at 1.5 * the earths radius from :

    g = ( 1 ² / 1.5 ² ) * 9.8 = 4.3555 (m/s)/s

    Force = mass * g = 200 * 4.3555 = 871.111 N

  • ?
    Lv 7
    8 years ago

    Have a think and then at least have a go at answering it

    Homework is for YOU to think about and try to work out, not for you to copy other peoples answers

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