$R$ is the radius of the Earth,$\omega$ is its angular velocity,and $g_p$ is the value of acceleration due to gravity at the poles. The effective value of $g$ at latitude $\lambda = 60^\circ$ will be equal to:
- A$g_p - \frac{1}{4}R\omega^2$
- B$g_p - \frac{3}{4}R\omega^2$
- C$g_p - R\omega^2$
- D$g_p + \frac{1}{4}R\omega^2$
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MediumAIPMT 2004
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