A) 83 minutes
B) \[83\times \sqrt{8}\] minutes
C) 664 minutes
D) 249 minutes.
Correct Answer: C
Solution :
: \[{{T}_{2}}={{T}_{1}}{{\left( \frac{{{r}_{2}}}{{{r}_{1}}} \right)}^{3/2}}=83{{\left( \frac{R+3R}{R} \right)}^{3/2}}\] \[=83\times 8=664\]minutes.You need to login to perform this action.
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