A 95 g projectile is launched at a speed of 22 m/s. It strikes a 1.7 kg stationary ball of clay, and becomes embedded in the clay. How fast does the combined projectile-clay unit travel immediately after the collision

To test the impact resistance of a new material, a steel ball is shot through bricks of the material. Two bricks, each with a mass of 1.5 kg, are resting on a frictionless surface, a short distance apart from each other. A steel ball, with a mass of 0.118 kg, is shot into the first brick with a velocity of 174 m/s, and after passing through the first brick, it embeds itself in the second brick. The first brick has a velocity of 1.83 m/s right after the ball leaves. What is the velocity of the second brick with the embedded ball?

An object, in initially travelling 45° south of east at 100 m/s, explodes into three separate pieces. A 2.0 kg fragment travels due south at 105 m/s, while a 4.0 kg fragment travels due east at 155 m/s. The last fragment has a mass of 3.0 kg. The third fragment travels at an unknown velocity. Calculate its direction and magnitude of this unknown velocity.

You launch a 20 kg shell at 45 degrees and at a speed of 25 m/sec. 1 second after launching it, it explodes into two fragments. Note that the first fragment of 15 kg has a speed of 30 m/sec horizontally forward immediately after the explosion. What is the speed of the second fragment ?