The correct answer to this question is A, 0.5J. Kinetic energy is the energy of a body or object that it holds due to motion. This energy is used in physics and is gained during acceleration. The kinetic energy remains the same, unless the speed changes. The J in the answer stands for joule which is the SI unit.
This unit is apart of the International System of Units. It is named after physicist James Prescott Joule. Kinetic energy is abbreviated with the symbols KE, Ek, or T. To find kinetic energy, the formula KE = 0.5 x mv2 can be used.
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