A) \[1.56\]
B) \[1.25\times {{10}^{-1}}\]
C) \[1.56\times {{10}^{-3}}\]
D) \[1.25\times {{10}^{-3}}\]
Correct Answer: D
Solution :
: Weight of the body = Centripetal force \[\therefore \]\[mg=mR{{\omega }^{2}}\] or\[\omega =\sqrt{g/R}=\sqrt{\frac{10}{6400\times {{10}^{3}}}}=\frac{1}{8\times {{10}^{2}}}\] \[=1.25\times {{10}^{-3}}rad/\sec \]You need to login to perform this action.
You will be redirected in
3 sec