A bullte of mass `10 gm` in moving with speed `400 m//s`. Find its kinetic energy in calories?

Explanation

To find the kinetic energy of a bullet of mass 10 grams moving with a speed of 400 m/s in calories, we can follow these steps:

### Step 1: Convert mass from grams to kilograms
The mass of the bullet is given as 10 grams. To convert grams to kilograms, we use the conversion factor:
\[ 1 \text{ gram} = 10^{-3} \text{ kg} \]
Thus,
...