A trolley, while going down an inclined plane, has an acceleration of `2 cm//s^(2)` starting from rest. What will be its velocity `3 s` after the start ?

Explanation

To solve the problem, we will use the first equation of motion, which relates initial velocity, acceleration, and time to find the final velocity.

### Step-by-Step Solution:

1. **Identify the given values:**
- Initial velocity (u) = 0 cm/s (since the trolley starts from rest)
- Acceleration (a) = 2 cm/s²
- Time (t) = 3 s
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