Explanation:
time spent to run from house to school=100/5=20s
time spent to return from school=100/10=10s
average velocity=200m/(10+20)
Answer:Eating. Your muscles in your arms and mouth use energy to feed itself. Then your body digest the food which also takes energy.
Sleep. When your tired, you don’t have much energy. It is said that you use more energy while your sleeping. But how do you become energized if you were using even more energy than before?
Explanation:
kinetic energy is energy that it possesses due to its motion.
Because then it could mess up the machine with to much energy
kinetic energy is converted into elastic potential energy stored in the brakes.