The displacement x of a particle moving in one dimension under the action of a constant force is related to time t by the equation `t=sqrt(x)+3`, where x is in meter and t is in second. Find the displacement of the particle when its velocity is zero.

Explanation

To solve the problem, we need to find the displacement \( x \) of a particle when its velocity is zero, given the relationship between displacement and time as \( t = \sqrt{x} + 3 \).

### Step-by-Step Solution:

1. **Rearranging the Equation**:
Start with the given equation:
\[
t = \sqrt{x} + 3
...