Question

16. A research satellite of mass 200 kg circles the earth in arn orbit of average radiuswhere R is the radius of earth. Assuming the gravitational pull on a mass of 1 kg on the earth's surface to be 10 N, the pull on the satellite will be (a) 880 N (c) 885 N 2 (b) 889 N (d) 892 N

Answer 1

Answer:

b) 889 N

Explanation:

We know g = $\frac{10 N}{1 Kg}$

                   = 10 m/$s^{2}$

Now we know, g' = $g\times \frac{R^{2}}{r^{2}}$

                             = $10\times \frac{R^{2}}{\frac{3R}{2}^{2}}$

                              = 40 / 9

Therefore, pull on the satellite will be = Mg'

                                                                = 200 x 40 / 9

                                                                 = 888.88 N

                                                                 = 889 N

Pull on the satellite is 889 N