A) 8300 N
B) 417 N
C) 830 N
D) Zero
Correct Answer: B
Solution :
\[u=100\ m/s,\ v=0,\ s=0.06\ m\] Retardation \[=a=\frac{{{u}^{2}}}{2s}=\frac{{{(100)}^{2}}}{2\times 0.06}=\frac{1\times {{10}^{6}}}{12}\] \[\therefore \] Force \[=ma=\frac{5\times {{10}^{-3}}\times 1\times {{10}^{6}}}{12}=\frac{5000}{12}=417\ N\]You need to login to perform this action.
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