Escape velocity of objects in a planet depends on the mass and size of

1.	Escape velocity of objects in a planet depends on the mass and size of the planet.1. Write down the expression for the escape velocity on the surface of the earth.2. What is its value on the surface of our planet?3. Give the reason why the moon does not have an atmosphere around it.
Answer» 1. Escape velocity Ve = \(\sqrt{\frac{2GM}{R}}\) 2. 11.2km/sec 3. The escape velocity of moon is very low. Hence all the gas molecules can escape from the moon’s surface.

Escape velocity of objects in a planet depends on the mass and size of the planet.1. Write down the expression for the escape velocity on the surface of the earth.2. What is its value on the surface of our planet?3. Give the reason why the moon does not have an atmosphere around it.

Answer»

1. Escape velocity Ve = \(\sqrt{\frac{2GM}{R}}\)

2. 11.2km/sec

3. The escape velocity of moon is very low. Hence all the gas molecules can escape from the moon’s surface.

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Escape velocity of objects in a planet depends on the mass and size of the planet.1. Write down the expression for the escape velocity on the surface of the earth.2. What is its value on the surface of our planet?3. Give the reason why the moon does not have an atmosphere around it.

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