Physics Gravitational Force

posted by .

Geosynchronous satellites orbit the Earth at a distance of 42000km from the Earth's center. Their angular velocity at this height is the same as the rotation of the Earth, so they appear stationary at certain locations in the sky. What is the force acting on a 1500kg satellite at this height?
Hint: recall that force is related to centripetal acceleration.

  • Physics Gravitational Force -

    The velocity is V
    = 2 pi*42*10^6 m/(24 h*3600 s/hr)

    The distance from the earth's center is R = 42*10^6 m

    The centripetal force acting is
    F = m a = M V^2/R

    and equals the gravitational attraction force.

  • Physics Gravitational Force -

    thank you so much

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Mathematics

    Low Earth orbiting satellites orbit between 200 and 500 miles above Earth. In order to keep the satellites at a constant distance from Earth, they must maintain a speed of 17,000 miles per hour. Assume Earth's radius is 3960 miles. …
  2. Precalc HW (NO IDEA HOW TO SOLVE)

    Low Earth orbiting satellites orbit between 200 and 500 miles above Earth. In order to keep the satellites at a constant distance from Earth, they must maintain a speed of 17,000 miles per hour. Assume Earth's radius is 3960 miles. …
  3. Physics

    A satellite with an orbital period of exactly 24.0 h is always positioned over the same spot on Earth. This is known as a geosynchronous orbit. Television, communication, and weather satellites use geosynchronous orbits. At what distance …
  4. Physics please help

    Geosynchronous satellites orbit the Earth at an altitude of about 3.58×10^7 m. Given that the Earth's radius is 6.38×10^6 m and its mass is 5.97×10^24 kg, what is the magnitude of the gravitational acceleration at the altitude of …
  5. AP Physics B

    A 1010 kg geosynchronous satellite orbits a planet similar to Earth at a radius 1.97 × 105 km from the planet’s center. Its angular speed at this radius is the same as the rotational speed of the Earth, and so they appear stationary …
  6. Physics

    If an artificial earth satellite is in an orbit around the earth’s equator with a period of exactly 1 day, how does its motion look to an observer on the rotating earth if it orbits in the same direction as the earth turns?
  7. Physics

    Some communication satellites are put into a circular geosynchronous orbit in which the satellite remains above a certain position on the earth's equator as it orbits. Such a satellite would always be in the same position in the sky …
  8. Physics

    Calculate the percentage of Earth’s gravitational force on the ISS astronauts while orbiting at an altitude of 248 miles above Earth’s surface. To do this, compare the gravitational force on an orbiting astronaut to the force on …
  9. physics

    radius R of the orbit of a geosynchronous satellite that circles the earth. (Note that R is measured from the center of the earth, not the surface.) You may use the following constants: The universal gravitational constant G is 6.67×10−11N⋅m2/kg2. …
  10. physics

    (1a). The gravitational field strength g on the earth’s surface is 9.8N/kg. explain what this means.(b) Using the law of gravity, show that gr2= k. Where g=gravitational field strength at a distance r from the center of the earth …

More Similar Questions