What was its speed, When at rest, the particle has a

What was its speed

Reference no: EM13694177

Question: When at rest, the particle has a lifetime of 0.15 ns before it decays into a neutron and a pion. One particular particle is observed to travel 2.7 cm in the lab before decaying.

Part A- What was its speed?

I need the answer and steps thanks!

Reference no: EM13694177

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