A running man has half the kinetic energy that a boy half his mass has The man speeds up - Physics - Work Energy And Power

Question

A running man has half the kinetic energy that a boy half his
mass has The man speeds up by 1 0m/s and then has the same energy
as the boy What were the orignal speed of the man and the boy?

Ankur · Accepted Answer

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A running man has half the kinetic energy that a boy half his mass has. The man speeds up by 1.0m/s and then has the same energy as the boy. What were the orignal speed of the man and the boy?