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.

PHYSICS TIME ★Find an expression for the escape velocity of a body

1.	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.
Answer» tion: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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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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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.