- #1
##T = \frac{p^2}{2m} = \frac 12 mv^2## is the non-relativistic expression for kinetic energy. You want to start with the relativistic expression.rem45 said:I am trying to follow this solution but I can't see how the momentum
p is equivalent to the sqrt(T^2+2Tmc^2)
I get that T=p^2/2m which yields p=sqrt(2mT) but why is there a T^2 term...??
Momentum conservation is a fundamental principle in physics that states that the total momentum of a closed system remains constant, unless an external force is applied.
In a closed system, the total momentum before a collision or interaction is equal to the total momentum after the collision or interaction. This means that the sum of the momenta of all objects in the system remains constant.
Kinetic energy is the energy an object possesses due to its motion. It is dependent on the mass and velocity of the object.
In a closed system, the total kinetic energy before a collision or interaction is equal to the total kinetic energy after the collision or interaction, as long as there are no external forces acting on the system. This is because momentum conservation ensures that any changes in velocity due to the interaction will result in an equal and opposite change in momentum, thus conserving the total kinetic energy.
No, momentum cannot be directly converted into kinetic energy. Momentum is a vector quantity, while kinetic energy is a scalar quantity. However, through interactions and collisions, momentum can be transferred between objects, resulting in changes in their velocities and therefore their kinetic energies.