# A satellite of mass 1000 kg is supposed to orbit the earth at a height of 2000 km above the...

## Question:

A satellite of mass 1000 kg is supposed to orbit the earth at a height of 2000 km above the earth's surface. Find (a) its speed in the orbit, (b) its kinetic energy, (c) the potential energy of the earth-satellite system, and (d) its time period. Mass of the earth = {eq}6 \times 10^{24} kg {/eq}.

## Earth's Velocity and Potential Energy:

All velocities are relative to a specific frame of reference and the earth's surface is assumed to be spherical. The potential energy stored depends on the object's mass. The higher the object is lifted, the more potential energy is transferred to the object.

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Given data

• The mass of the satellite is: {eq}m = 1000\,{\rm{kg}} {/eq}.
• The mass of the earth is: {eq}M = 6 \times {10^{24}}\,{\rm{kg}} {/eq}.
• The...

Gravitational Pull of the Earth: Definition & Overview

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Chapter 15 / Lesson 17
29K

Earth's gravitational pull is often misunderstood, but without it, life on Earth would be impossible. In this lesson, we'll define the gravitational pull and give some examples of how it is used. A quiz is provided to test your understanding.