A ball of mass 500 g falls from a height of 4 m Find the K.E. of the ball when it reaches the ground. (Take g =9.8 `m/s^2`)

Explanation

To solve the problem of finding the kinetic energy (K.E.) of a ball when it reaches the ground after falling from a height of 4 meters, we can follow these steps:

### Step 1: Convert the mass from grams to kilograms
The mass of the ball is given as 500 grams. To use the formula for potential energy, we need to convert this mass into kilograms.

\[ \text{Mass (m)} = 500 \text{ g} = \frac{500}{1000} \text{ kg} = 0.5 \text{ kg} \]
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