Question

The escape speed from earth's surface is 11km/s. A ertian planet has a radius twice that of earth but its mean density is the same as thatof earth. Find the value of the escape speed

Answer 1

Answer:

In common usage, the initial point is on the surface of a planet or moon. On the surface of the Earth, the escape velocity is about 11.2 km/s, which is approximately 33 times the speed of sound (Mach 33) and several times the muzzle velocity of a rifle bullet (up to 1.7 km/s).

Explanation:

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