JEE Advanced 2024 Physics question on Oscillations and Waves

A block of mass 5 kg moves along the $x$-direction subject to the force $F = (-20x + 10)$ N, with the value of $x$ in metre. At time $t = 0$ s, it is at rest at position $x = 1$ m. The position and momentum of the block at $t = (\pi/4)$ s are