An object is stationary in space and located at a distance 10 000 km from the centre of a certain planet. It is found that 1.0 MJ of work needs to be done to mave the object to a stationary point 20 000 km from centre of the planet. (i) Sketch a diagram to illustrate the situation (ii) Calculate how much more work needs to be done to move object a stationary point 80 000 km from the centre of the planet.

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