A) 2850N
B) 2200 N
C) 2000N
D) 1800 N
Correct Answer: D
Solution :
\[F=\frac{m\,({{u}^{2}}-{{v}^{2}})}{2S}=\frac{30\times {{10}^{-3}}\times {{(120)}^{2}}}{2\times 12\times {{10}^{-2}}}=1800\,N\]You need to login to perform this action.
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