In: Physics
A thin 1.5-m-long uniform rod with a total mass of 1650 g is suspended vertically at the upper end. The moment of inertia of the rod in respect to the center of mass is mL2/12 (where L is the total length of the rod). A 12-g bullet is shot to the lower end of the rod and embeds there. The bullet speed before impact is 380 m/s. Calculate the amount of energy transferred to the heat during the collision.
The rod and the bullet are taken as a system.The net torque about the pivot of the rod is zero.So, angular momentum of the system about the pivot is conserved.