A bullet losses 19% of its kinetic energy when passes through an obstacle. The percentage change in its speed is
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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 $11 \%$
The kinetic energy of a body decreases by 18% what is the percentage decrease in momentum:
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