# Comets travel around the sun in elliptical orbits with large eccentricities. If a comet has speed...

## Question:

Comets travel around the sun in elliptical orbits with large eccentricities. If a comet has speed 2.0 {eq}\times {/eq} 10{eq}^4 {/eq} m/s when at a distance of 2.5 {eq}\times {/eq} 10{eq}^{11} {/eq} m from the center of the sun, what is its speed when at a distance of 5.0 {eq}\times {/eq} 10{eq}^{10} {/eq} m?

## Gravitational Force:

The gravitational force occurs between two objects when the objects are placed at a distance with each other. The gravitational force mostly depends on the mass of the objects.

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Given data

• The comet initial speed is: {eq}u=2\times 10^4\;\mathrm{m/s} {/eq}
• The initial distance of the comet from the sun is: {eq}d_1=2.5\times... Gravitational Pull of the Earth: Definition & Overview

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Chapter 15 / Lesson 17
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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.