Question
A bullet losses $19 \%$ of its kinetic energy when passes through an obstacle. The percentage change in its speed is(A) Reduced by $10 \%$(B) Reduced by $19 \%$(C) Reduced by $9.5 \%$(D) Reduced by $11 \%$
Step 1
Therefore, the speed of the bullet can be expressed as $v = \sqrt{\frac{2KE}{m}}$. Show more…
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