Question

A rifle can shoot a 0.004 kg bullet at a speed of 998 m/s. Find
the kinetic energy of the bullet.



​

Answer 1

$\mathbb\red{Answer:}$

$\mathsf\green{Kinetic\:Energy\::-\:1992.008J}$

$\mathfrak\purple{\underbrace{Step\:by\:Step\: Explanations}}$

Given:

↪️$\mathcal{Mass\: of\: the\: bullet}$ $\mathtt\pink{(m)}$:-$0.004$

↪️Speed of the bullet (v):-998 m/s

To Find:

✏️Kinetic Energy {K.E}=?

According to the Question:

As we know that:

Kinetic energy=$\frac{1}{2} {m}^{2}$

Kinetic energy=$\frac{1}{2} \times 0.004 \times {998}^{2}$

Kinetic energy=$\frac{1}{2} \times \frac{4}{1000} \times 99604$

Kinetic energy=$0.002 \times 996004</p><p>$

Kinetic energy=1992.008J