tomtom1909 tomtom1909
  • 23-01-2024
  • Physics
contestada

A running man has half the kinetic energy of that of a boy of half of his mass. The man speeds up by 1 m/s so as to have the same K.E. as that of the boy. The original speed of the man will be
A) 2 m/s
B) 3 m/s
C) 4 m/s
D) 5 m/s

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