$${J = \text{pindala} = \mathrm{\frac{1}{2} (0,27\, s)(90,0\, kg)(34,0\, m/s^2)} = \\= \mathrm{4,13 \times 10^2 N \cdot s \approx \underline{\underline{4,1 \times 10^2\, N \cdot s}}}}$$