A bullet of mass $0.01\, kg$ and travelling at a speed of $500 \,m/s$. strikes a block of mass $2 \,kg$. which is suspended by a string of length $5\,m$. The centre of gravity of the block is found to raise a vertical distance of $0.1\,m$. What is the speed of the bullet after it emerges from the block- ................ $\mathrm{m}/ \mathrm{s}$
A bullet of mass $0.01\, kg$ and travelling at a speed of $500 \,m/s$. strikes a block of mass $2 \,kg$. which is suspended by a string of length $5\,m$. The centre of gravity of the block is found to raise a vertical distance of $0.1\,m$. What is the speed of the bullet after it emerges from the block- ................ $\mathrm{m}/ \mathrm{s}$
- A
$110$
- B
$220$
- C
$330$
- D
$200$
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