An electron is moving at 0.6c. If we calculate its kinetic energy using (1/2)mv², we get a result which is: A) just right B) just half enough C) twice the correct value D) about 1% too low E) about 28% too low

Question

Quizplus · Accepted Answer

The formula (1/2)mv^2 is a classical physics equation that underestimates the kinetic energy of particles moving at relativistic speeds (close to the speed of light, c). At 0.6c, relativistic effects are significant, and the correct kinetic energy is calculated using relativistic mechanics, which yields a value approximately 28% higher than the classical calculation.

An Electron Is Moving at 0