An unstable particle is moving at a speed of 1.6 × $10 ^ { 8 }$ m/s relative to a laboratory. Its lifetime is measured by a stationary observer in the laboratory to be 6.8 × $10 ^ { - 6 }$ s. What is the lifetime of the particle as measured in the rest frame of the particle? (c = 3.0 × 10⁸ m/s)

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The Answer of An unstable particle is moving at a speed of 1.6 × $10 ^ { 8 }$ m/s relative to a laboratory. Its lifetime is measured by a stationary observer in the laboratory to be 6.8 × $10 ^ { - 6 }$ s. What is the lifetime of the particle as measured in the rest frame of the particle? (c = 3.0 × 10⁸ m/s)

An Unstable Particle Is Moving at a Speed of 1 10810 ^ { 8 }108

An Unstable Particle Is Moving at a Speed of 1 $10 ^ { 8 }$