Aren't these two equations contradictory? Which one is correct?Marts12 said:KE = 0.5mv^2
Kinetic energy = change in momentum = mv2-mv1
Yes, and you already have all the ingredients to construct that equation yourself.Marts12 said:KE=0.5mv^2 is the correct equation for kinetic energy, but we are given that.
Am I right in saying that I need an equation that relates the change in Kinetic energy to mass?
Nearly, but you lost the 1/2.Marts12 said:Ok,
If I were to say that Change in Kinetic Energy = mv2^2 - mv1^2
Where v2 = final velocity and
V1 = initial velocity
Would I be on the right lines?
Kinetic energy is the energy a moving object possesses due to its motion. It is a scalar quantity that depends on the mass and velocity of an object.
Kinetic energy is calculated using the formula KE = 1/2mv², where m is the mass of the object and v is its velocity.
The kinetic energy of an object is directly proportional to its mass. This means that as the mass of an object increases, its kinetic energy also increases.
Mass has a significant effect on kinetic energy because it is one of the two factors that determine the amount of kinetic energy an object has. The other factor is velocity.
According to the theory of relativity, mass and energy are equivalent and can be converted into each other. However, the conversion of kinetic energy into mass requires extremely high velocities and is not practically feasible in most scenarios.