A certain type of elementary particle travels at a speed of 2.70 x 10^8 m/s . At this speed, the average lifetime is measured to be 4.76 x 10^{-6} s . What is the particle’s lifetime at rest?

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Giancoli's Physics: Principles with Applications, 7th Edition

Special Theory of Relativity

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26-4 and 26-5: Time Dilation, Length Contraction

26-7: Relativistic Momentum

26-9: Mass and Energy

26-10: Relativistic Addition of Velocities

Problem 2

A certain type of elementary particle travels at a speed of $2.70 \times 10^8 \textrm{ m/s}$ . At this speed, the average lifetime is measured to be $4.76 \times 10^{-6} \textrm{ s}$ . What is the particle’s lifetime at rest?

2.07 \times 10^{-6} \textrm{ s}

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A certain type of elementary particle travels at a speed of 2.70×108 m/s2.70 \times 10^8 \textrm{ m/s}2.70×108 m/s. At this speed, the average lifetime is measured to be 4.76×10−6 s4.76 \times 10^{-6} \textrm{ s}4.76×10−6 s. What is the particle’s lifetime at rest?

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A certain type of elementary particle travels at a speed of $2.70 \times 10^8 \textrm{ m/s}$ . At this speed, the average lifetime is measured to be $4.76 \times 10^{-6} \textrm{ s}$ . What is the particle’s lifetime at rest?