A bullet hits a solid target lying on a frictionless surface and gets embeded in it.what is conserved(kinetic energy, momentum,both or none)?
Let us consider the followings
Here the collision is inelastic one as the bullet gets embedded in the target. Conservation of momentum occurs in all types of collision.
So by law conservation of momentum we get
Change kinetic energy due to collision
So there is net loss in KE. It is not conserved here.