7.0 m i) Find the velocity of the bar just before the collision. V = 4.5 m ii) Find the angular momentum of the bar around point A just before the collision. A HA = 3.0 m iii) Find the angular velocity of the bar just after the collision. The 6.0 kg bar is horizontal when it is released from rest as shown above. The impact between the bar and the rounded corner A is plastic (e = 0). iv) Find the velocity of the bar's center just after the collision. V'CM =