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Suppose an Object Whose Mass Is M Is Moving with a Speed

Question 73

Multiple Choice

Suppose an object whose mass is m is moving with a speed of 0.8c.Which is the correct expression for its kinetic energy?

A) K = mv²/2
B) K = γmc²
C) K = (γ − 1) mc²
D) Answers a and c are both correct.

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