Impulse is calculated using the formula:
\[ \text{Impulse} = \text{Force} \times \text{Time} \]
In this case, the force \( F \) is 1,500 N and the time \( t \) is 0.03 s. So we can calculate the impulse:
\[ \text{Impulse} = 1,500 , \text{N} \times 0.03 , \text{s} = 45 , \text{N.s} , (\text{or kg.m/s}) \]
Therefore, the answer is:
45 kg.m/s