PHYSICS TIME
★Find an expression for the escape velocity of a body when projected from the earth. Show that the escape velocity from the earth's surface is about 11.2km/sec.
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Explanation:
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).
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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).
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