Answer :
The kinetic energy increases 4 times.
What is energy?
Energy, which is observable in the execution of labor as well as in the form of heat and light, is the quantitative quality that is transmitted to a body or to a physical system in physics. Energy is a preserved resource; according to the rule of conservation of energy, energy can only be transformed from one form to another and cannot be generated or destroyed. The joule is the SI's (International System of Units) unit of measurement for energy (J). A moving object's kinetic energy, an object's potential energy, an object's elastic energy, chemical energy linked to chemical processes, electromagnetic radiation's radiant energy, and the internal energy of a thermodynamic system are examples of common kinds of energy.
We know, kinetic energy, KE₁ = 1/2.m.v²
When v gets doubled, so
then kinetic energy, KE₂ = 1/2.m.(2v)²
= 1/2.m.4v²
= 4KE₁
Hence, Kinetic energy increases 4 times.
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