Question: In physics , the escape velocity is the minimum speed needed for an object to break free from the gravitational attraction of a massive body.
Inphysics theescape velocityis the minimum speed needed for an object to "break free" from the gravitational attraction of a massive body. The escape velocity from earth is about kmh mph For a massive celestial object eg a star or planet the escape velocity at a given distance is given by the formula:
veGMr
where ve is the escape velocity in meters per second, G is the universal gravitational constant and is equal to x mkgs M is the mass of the object in kilograms, and r is radius of the object in meters.
QUESTION: Enceladus has a mass of x kg and a radius of x meters. What is the minimum speed in meters per second that the plumes must travel to escape the gravity of Enceladus? Round to the nearest whole number.
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