2. A 50kg boy and his 100kg father went jogging. Both ran at a rate of 5m/s. Who had more
kinetic energy?
a. The boy, his KE is equal to 6250J.
b. The father, his KE is equal to 1250 J.
c. Both have the same KE since they move at the same velocity.
d. It is impossible to determine since there is no specified displacement.
3. The energy of movement is the kind of energy particles of matter have. This energy is
a. potential energy b. kinesthetic energy
c. phase energy
d. kinetic energy