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###### Jeremy C. Zodinliana posted an Question
October 23, 2021 • 09:30 am 30 points
• IIT JAM
• Physics (PH)

## Classical mechanics 11. the time period of a satellite of earth is 5 hrs. if the separation between the earth and the satelite increased to4 fal10 hes ibl 20 hr

CLASSICAL MECHANICS 11. The time period of a satellite of earth is 5 hrs. If the Separation between the earth and the satelite increased to4 fal10 hes Ibl 20 hrs cl 40 hrs (d 800 hrs. 12. The position of the centre d mass of a system of particles oes not epend upon (a) mass of the particles (c) position of the particles (D) force on the particles (d) their relative positions 13. A shell following a parabolic path explodes somewhere in its flight. The centre of the fragments will continue to move in (a) vertical direction (c) the same parabolic path (b) horizontal direction (9 any direction 14. A system consists ot three particles each of mass m and lOcated at, 9, (2, 2) and (5, 3). The coordinates or the centre of mass is (a) (1, 1) (b) (2, 2) ((3,3) ( (6, b) sA an 5 intaly at rest move towards each velocity of A is v and that of B is 2v, the velocity of the centre of mass is ()v S (d) 0 16. In a system of two identical particles, one particle has an acceleration a, while the other is at rest. The acceleration of the centre d the mass is ta)a (D 0.3a () 20 (d) 0 17. The period of rotation of a satellite in a circular orbit around a planet is independent of (a the masS of the planet ( the mass of the satellite ( the radius of the planet (d) all of the above. 18. Two satellites of masses m and ma are revolving around the earth in circular orbits of radii r and fa The ratio of their orbital velocities vi/V, is c) 19. A satellite of the earth is revolving in circular orbit with uniform speed v. I gravitational force suddenily disappears, then the satelite wi (blfall toad ne speed in original orbit ( move with velocity v tangentially to the original orbit (d) will fly from the earth radially outward viths 20. IfJ be the angular momentum of a planet of mass m, then accoraing tO Kepler S 2 law, the areal velocity Is grven Dy 2/m (b) 2Im 2m (d) J/m 21. For an elliptical or bit, the eccentricity (6) is (a)&=1 () &0 (cE>1 (d) &< 1.

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