A) \[-\frac{5{{\ell }_{2}}}{2}m/s\]
B) \[-\frac{2{{\ell }_{2}}}{5}m/s\]
C) \[-\frac{{{\ell }_{2}}}{2}m/s\]
D) \[-\frac{{{\ell }_{2}}}{5}m/s\]
Correct Answer: B
Solution :
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