The escape velocity of a body projected vertically upwards from the earth's surface is 11.2 km/sec. If the body is projected in a direction making 30° angle to the vertical, its escape velocity in this case will be :
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a
11.2 km/s
b
11.2 x (1/2)km/s
c
11.2(3/2)km/s
d
11.2 x (1/3) km/s
answer is A.
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Detailed Solution
Escape velocity does not depend on angle of projection.