Gravitation Question 23

Question: R is the radius of the earth and [ω] is its angular velocity and [gp] is the value of g at the poles. The effective value of g at the latitude [λ=60∘] will be equal to[MP PMT 1999]

Options:

A) [gp−14Rω2]

B) [gp−34Rω2]

C) [gp−Rω2]

D) [gp+14Rω2]

Show Answer

Answer:

Correct Answer: A

Solution:

[g=gp−Rω2cos2λ] =[gp−ω2Rcos260∘] =[gp−14Rω2]

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