Answer
$$
32.4 \mathrm{\ MeV}
$$
Work Step by Step
By conservation of energy,
$$
K_{\pi^{-}}=Q-K_{p}=37.7 \mathrm{MeV}-5.35 \mathrm{MeV}=32.4 \mathrm{\ MeV}
$$
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 44 - Quarks, Leptons, and the Big Bang - Problems - Page 1364: 23c
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