What is the meaning of the maximum loss of mechanical energy in completely inelastic collision For example, when a small ball climbs onto a large wooden block that was originally stationary, the last two have the same speed, which is a completely inelastic collision 1 / 2mV ^ 2 --- 1 / 2 (M + m) V total ^ 2 = MGH can It is obvious that mechanical energy is conserved. Why is it called the greatest loss of mechanical energy? Is this in contradiction with the characteristics of completely non-linear

What is the meaning of the maximum loss of mechanical energy in completely inelastic collision For example, when a small ball climbs onto a large wooden block that was originally stationary, the last two have the same speed, which is a completely inelastic collision 1 / 2mV ^ 2 --- 1 / 2 (M + m) V total ^ 2 = MGH can It is obvious that mechanical energy is conserved. Why is it called the greatest loss of mechanical energy? Is this in contradiction with the characteristics of completely non-linear

I can't understand what you write at all
In the process of collision, objects often deform, generate heat and sound. Therefore, in general, there will be kinetic energy loss in the process of collision, that is, kinetic energy is not conserved and momentum is conserved. This kind of collision is called inelastic collision. When the objects are combined after collision, the kinetic energy loss is the largest. This kind of collision is called completely inelastic collision
What you're talking about is that the ball climbs a block with an angle of a, and the speed is the same when it rises to H
Let the original velocity of the ball be V1, the common velocity of the two be V2, and the friction force be f
have to
mV1=(M+m)V2²
1/2mV1²-1/2(m+M)V2²=mgh+Fh/sina
Friction dissipates energy

The formula of mechanical energy

EK (kinetic energy) = 1 / 2mV & # 178;
EP (gravitational potential energy) = MGH
EP (elastic potential energy) = 1 / 2KV and 178
In general, the conservation of energy is the first state of EK + EP (gravitational potential energy) = Ek2 + EP2
Or use the kinetic energy theorem. It is recommended that you use the second kinetic energy theorem, which is more convenient and not easy to make mistakes

Why is momentum conserved in completely inelastic collisions
In a completely inelastic collision, kinetic energy is transformed into internal energy. Why is mechanical energy not conserved but momentum conserved?

Many people have asked this question
Let's say momentum and energy are two completely different physical quantities. First, momentum is a vector and energy is a scalar
Does momentum have to change when energy changes? Momentum in the universe is a constant (I estimate it as 0)
Momentum is universal
Momentum conservation can be used wherever it can be used