A) \[\frac{10}{28}cm\]
B) \[\frac{10}{14}cm\]
C) \[\frac{10}{7}cm\]
D) \[0.7cm\]
Correct Answer: C
Solution :
\[2Tl=\pi {{r}^{2}}ld\times g\] \[r=\sqrt{\left( \frac{2T}{\pi dg} \right)}=\sqrt{\frac{2\times 44\times 7}{22\times 1.4\times 980}}\] \[=\frac{1}{7}cm=\frac{10}{7}mm\]You need to login to perform this action.
You will be redirected in
3 sec