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Standard X
Physics
Kinetic Energy
70.Why is tot...
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70.Why is total energy zero when a body is projected at escape speed?
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Q.
ESCAPE SPEED
The escape speed of a body on the earth's surface is 11.2 km
s
−
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. A body is projected with thrice of this speed. The speed of the body when it escapes the gravitational pull of the earth
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The total mechanical energy of an object of mass
m
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If a body is projected with speed less than escape velocity, the body:
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Escape velocity of a body when projected from the earth's surface is
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If a body is projected with a speed lesser than escape velocity, then
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