A) 2.86cm
B) 1.43cm
C) 5.72cm
D) 1.63cm
Correct Answer: B
Solution :
\[h=\frac{2T\cos \theta }{r\rho g}=\frac{2\times 70\times \cos 0{}^\circ }{0.1\times 1\times 980}\]\[=1.43\text{ }cm\]You need to login to perform this action.
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