A) \[\frac{1}{4}{{\omega }^{2}}R\]
B) \[\frac{3}{4}{{\omega }^{2}}R\]
C) \[{{\omega }^{2}}R\]
D) \[\frac{1}{2}{{\omega }^{2}}R\]
Correct Answer: B
Solution :
Acceleration due to gravity at latitude l is given by \[{g}'=g-R{{\omega }^{2}}{{\cos }^{2}}\lambda \] At \[{{30}^{o}},\,\,{{g}_{30{}^\circ }}=g-R{{\omega }^{2}}{{\cos }^{2}}{{30}^{o}}=g-\frac{3}{4}R{{\omega }^{2}}\] \ \[g-{{g}_{30}}=\frac{3}{4}{{\omega }^{2}}R.\]You need to login to perform this action.
You will be redirected in
3 sec