A 45-g bullet is fired with a velocity of 400 m/s at θ = 30° into a 9-kg square panel of side b 5 200 mm. Knowing that h=150 mm and that the panel is initially at rest, determine
(a) the velocity of the center of the panel immediately after the bullet becomes embedded,
(b) the impulsive reaction at A, assuming that the bullet becomes embedded in 2 ms