What if work is done on the mass?James2911 said:Homework Statement
How do Initial and Final Kinetic Energy depend on each other?
Homework Equations
The Attempt at a Solution
Do they remain equal? For example for the same mass m, can we write
KE1 = KE2
1/2 m v1^2 = 1/2 m v2^2
Initial and final kinetic energy refer to the energy an object possesses due to its motion at specific points in time. Initial kinetic energy is the energy an object has at the beginning of its motion, while final kinetic energy is the energy it has at the end of its motion.
The initial kinetic energy of an object can be calculated using the formula KE = 1/2 * m * v^2, where m is the mass of the object and v is its initial velocity. The final kinetic energy can be calculated using the same formula, but with the final velocity of the object.
The initial and final kinetic energy of an object are affected by its mass and velocity. The greater the mass and velocity of an object, the greater its kinetic energy will be. Other factors that can affect kinetic energy include air resistance, friction, and any external forces acting on the object.
According to the work-energy theorem, the change in an object's kinetic energy is equal to the net work done on the object. This means that the initial and final kinetic energy of an object can be affected by the amount of force applied to it and the distance over which the force is applied.
Yes, initial and final kinetic energy can be negative if the object is moving in the opposite direction of the chosen reference frame. This is often seen in situations where an object is slowing down or coming to a stop, and its kinetic energy is decreasing.