Question

7.) calculate the escape speed of a body from the solar system having mass of sun 2×10³⁰kg in a separation of the earth from the sun 1.5×10¹¹m....​

Answer 1

Given : Mass of earth m = 6 × 10^24 kg

Mass of sun M = 2 × 10^30 kg

Distance between sun and earth r = 1.5 × 10^11 m

Force of gravitation between them F = GMm/r^2

F = 6.67 × 10^-11 × (6 × 10^24) × (2 × 10^30)/(1.5 × 10^11)^2 = 3.557 × 10^22 N

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