2. GRAVITATION [IX]

                                                               YASH CLASSES

                                                           2.  GRAVITATION    [IX]

14.The mass of planet Jupiter is 1.9 X 10 ³⁰ kg.  The main distance of Jupiter from the sun is 

      7.8x10¹¹ m. Calculate the gravitational force which?   The sun exerted on Jupiter.

15.Suppose you and your friend have mass 50 kg each. Suppose also that both of you are standing 

   such that your centre of gravity is one metre apart. Calculate the force of gravitation between you

    and your friend. Calculate also the force of gravity acting on you. Take the mass of Earth.

    Equal to 6 X 10 ²⁴ kg and G=6. 67 X 10 ^-11 N m ² /kg².

 16. square of mass 40 kg is attracted by the second is fair of mass 60 kg with the force equal to

      4 X 10 ^-5 N If G=6 X 10 ^-11 N m ² /kg².

17.Compare the gravitational force is exerted by sun and the moon. On the earth. Which excited a greater force and by how many times?

18.The mass of earth 6X 10 ²⁴ kg and that of the moon is 7.4X 10 ²²kg If the distance between the               Earth and the moon be 3.84X 10 ⁵ km. Calculate the force exerted by the earth on the moon. 

    The value of G= 6.7X 10 ^-11 N m ² /kg².

19.Suppose that that 2 giant planets of the solar system, Jupiter and Saturn are in the same line as seen in from the Earth. Full list of it happens occasionally that some of the planets appear in the same line from the Earth. Find the total gravitational force due to them on a person of mass 50 kg on the earth. Compare this with the force of gravity on the same person. Quote the force due to planets be important.