The kinetic energy of an object will be halved when the mass is cut in half.
Kinetic energy may be described as the energy that an object possesses due to its motion. It is defined as the work required to accelerate a body of specified mass from rest to a specified velocity. After the body acquires this energy during acceleration, it retains this kinetic energy as long as the velocity does not change.
Kinetic energy (KE) is the energy that moves matter. Everything that moves has kinetic energy. The amount of kinetic energy of a moving object is directly related to its mass and velocity.
KE = 1/2 mass × velocity²
For the given question:
Since,
KE = ¹/₂ mv²
If mass is cut in half i.e m/2, then the KE will be:
KE = ¹/₂ m/2 v²
KE = ¹/₄ mv²
KE = ¹/₂ (¹/₂ m/2 v²)
This indicates that kinetic energy is halved as the mass is cut in half.
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