Physics

Problem

At what approximate height

h

above Earth’s surface should a body be taken so that its weight decreases by the same percentage as when it is taken to a depth of

400\,\text{km}

below the surface? (Take

R = 6400\,\text{km}

.) a)

425\,\text{km}

100\,\text{km}

200\,\text{km}

400\,\text{km}