1.for background pertinent to this problem. A 1.60-g bullet, traveling at a speed of 404 m/s, strikes the wooden block of a ballistic pendulum, such as that in Figure 7.14. The block has a mass of 294 g. (a) Find the speed of the bullet/block combination immediately after the collision. (b) How high does the combination rise above its initial position

2.A 3.10-kg ball, moving to the right at a velocity of +4.08 m/s on a frictionless table, collides head-on with a stationary 7.50-kg ball. Find the final velocities of (a) the 3.10-kg ball and of (b) the 7.50-kg ball if the collision is elastic. (c) Find the magnitude and direction of the final velocity of the two balls if the collision is completely inelasti

2.The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.0190 kg and is moving along the x axis with a velocity of +5.16 m/s. It makes a collision with puck B, which has a mass of 0.0380 kg and is initially at rest. The collision is not head-on. After the collision, the two pucks fly apart with the angles shown in the drawing. Find the speed of (a) puck A and (b) puck B