A metal ball of mass 5 kg falls from a height of 490 m. How much time will it take to reach the ground ?
`(g=9.8m//s^(2))`

Explanation

To solve the problem of how much time it will take for a metal ball of mass 5 kg to fall from a height of 490 m, we can use the equations of motion under uniform acceleration due to gravity.

### Step-by-Step Solution:

1. **Identify the Given Values:**
- Height (h) = 490 m
- Acceleration due to gravity (g) = 9.8 m/s²
- Initial velocity (u) = 0 m/s (since it is falling from rest)
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