A bullet of mass $100 g$ has shot with a velocity of $1000 k m / h r$ towards the target. What would be it's kinetic energy?

3864 J

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4240 J

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2586 J

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6580 J

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Solution

The correct option is A
3864 J

The mass of the bullet is $100 g$ and the velocity of the bullet is $1000 k m / h r$ .
$K . E . = \frac{1}{2} m v^{2}$ , where m is the mass of the bullet and v is the velocity of the bullet.
Substituting m as $0.1 k g$ and converting $1000 \frac{k m}{h r}$ into $278 \frac{m}{s e c}$ in the formula, we would obtain kinetic energy to be $3864 J$ .

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