The free-fall acceleration at the surface of planet 1 is 18 m/s^2. The radius and the mass of planet 2 are twice those of planet 1. What is the free-fall acceleration on planet 2?

  1. 👍
  2. 👎
  3. 👁
  1. g= GM/R^2
    For Planet 1, Let it be g1=GM1/R1^2
    And for planet 2, g2=GM2/R2^2[M2=2M1 and R2= 2 R1]
    So g2=GM1/2R1^2
    Hope this helped!!!

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physichs

    Two metal disks, one with radius R1 = 2.40 cm and mass M1 = 0.900 kg and the other with radius R2 = 4.95 cm and mass M2 = 1.50 kg , are welded together and mounted on a frictionless axis through their common center. A light string

  2. physics

    On planet x, an object weighs 10.4N. On planet B where the magnitude of the free fall acceleration is 1.48g (where g=9.8 m/s^2 is the gravitational acceleration on Earth),the object weighs 24.6N. The acceleration of gravity is 9.8

  3. Physics

    The planet Krypton has a mass of 7.1 × 1023 kg and radius of 3.3 × 106 m. What is the acceleration of an object in free fall near the surface of Krypton? The gravita- tional constant is 6.6726 × 10−11 N · m2/kg2. Answer in

  4. earth

    a space traveller determines the radius of a planet to be half of earth . After landing on its surface , he finds the acceleration due to gravity to be twice of that of surface of earth. Find the ratio of mass of planet to the

  1. physics

    Calculate the mass of moon if free fall acceleration near it surface is know be 1.62 m/s^2 ( radius of moon is 1738 Km )

  2. Physics

    Which statement reagarding the idealized model of motion called free fall is true? A. A freely falling object has a constant acceleration called the acceleration due to gravity. B. The idealized model of motion called free fall

  3. Physics

    One way to measure g on another planet or moon by remote sensing is to measure how long it takes an object to fall a given distance. A lander vehicle on a distant planet records the fact that it takes 3.17 s for a ball to fall

  4. mechanics

    please help solve these questions (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

  1. Physics

    Given: G=6.67259*10^ -11 Nm^ 2 /kg^ 2 The acceleration of gravity on the surface of a planet of radius R = 7040l is 11.1 m/s ^ 2 What is the period of a satellite in circu lar orbit h = 15488kn above the surface? Answer in units

  2. physics

    A satellite has a mass of 5850kg and is in a circular orbit 4.1*10^5m above the surface of a planet. The period of the orbit is two hours. the radius of the planet is 4.15*10^6m.What is the true weight of the satellite when it is

  3. physics

    An object rests on the surface of planet y. Its mass is unknown. Find the acceleration due to gravity near the surface of planet y. Answer in m/s/s. G=6.673x10^-23 radius of planet y=2439700m mass of planet y=3.302x10^23kg radius

  4. Physics

    The planet Krypton has a mass of 9*10^ 23 kg and radius of 1.2 * 10 ^ 6 * m What is the acceleration of an object in free fall near the surface of Krypton? The gravita tional constant is 6.6726*10^ -11 N* m^ 2 /kg^ 2 Answer in

You can view more similar questions or ask a new question.