Can a satellite be in an orbit in a plane not passing through the earth's centre? Explain your answer.

What is the work done by the force of gravity on a satellite moving round the earth? Justify your answer.

An artificial satellite orbiting the' earth does not fall down because the earth’s attraction

Given the M.I. of a dise of mass M and radius R about any of its diameter to be MR^2 /4. Find its M.I about an axis (i) passing through its centre and normal to it, and (ii) passing through a point at its edge and normal to it.

Two discs of moments of inertia /, and l2 about their respective axes (normal to the disc and passing through the centre), and rotating with angular speeds omega and omega are brought into contact face to face with their axes of rotation coincident, (a) What is the angular speed of the two-disc system? (b) Show that the kinetic energy of the combined system is less than the sum of the initial kinetic energies of the two discs. How do you account for this loss in energy? Take . omega ne omega

Show with a neat diagram, the direction of the reflected ray in case of a concave mirror if the incident ray is : Passing through the centre of curvature.

What is the equation of a plane passing through (-2, 4, -1) and perpendicular to X-axis ?