The imaginary angular velocity of the earth for which the effective acceleration due to gravity at the equator shall be zero is equal to
(Take, 
for the acceleration due to gravity, if the earth were at rest, radius of earth equal to 6400 km and 
)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Acceleration due to gravity,
Angular velocity, 
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