Question

2 Two satellites of masses m and m (m > m ) are revolving around the earth in circular orbits of radii r, andr, (r,>r) respectively. Which of the following is true regarding their respective speeds vi and v2? A) v = v2 B) Y, > V2 C)',​

Answer 1

Orbital speed = √(GM/r) Here orbital speed depends on mass of the planet the satellite (M). Orbital speed doesn't depend on mass of the satellite (m). Orbital speed depends on distance between satellite and centre of planet (r). Here orbital speed is inversely proportional to distance (r) So if r1 > r2 Then v1< v2 Hence orbital speed of satellite 1 is less than orbital speed of satellite 2