What is the value of escape velocity from the surface of (/) earth, (//) moon?

The radius of the Moon is frac(1)(4)^th the radius of the earth and its mass is frac(1)(96)^th the mass of the earth. If the escape velocity from the surface of the earth is 11.2k ms^(-1) , find the escape velocity from the surface of the Moon.

What is the mass of the earth?

What is velocity?

If the earth stops rotating about its own axis, what is the effect on the value of weight of any object on the surface of earth?

If the change in the value of ‘g’ at a height h above the surface of the earth is the same as at a depth x below it, then (both x and h being much smaller than the radius of the earth):

What is meant by critical velocity?

Does the escape velocity vary with mass?

What is the length of the radius of the earth?

What is escape velocity? Find an expression for the escape velocity of a body when projected from the surface of the earth. Show that the escape velocity form the earth's surface is about 11.2 km/sec.