Question

2.
A running man has half the kinetic energy that a running boy of half his mass has. The
man speeds up by 1.0 m/s and now has the same kinetic energy as the boy. The original speed
of the man expressed in m/s units must be
a) V2+1
b) V2-1
c) V2+2
d) 2-2​

Answer 1

Explanation:

c is the right option ......