A boy and his dogs are running, The white dog has a mass of 10 kg The black dog has a mass of 20 kg. The boy has a mass of 40 kg They are all running at 3 m/s Kinetic Energy Versus Mass 1. Evaluate Expressions Determine the kinetic energy of the dogs and the boy. Record the kinetic energy for each. 250 200 150 2. Construct Graphs Graph the data to show how mass and kinetic energy are related 3. SEP Use Mathematics Suppose the smaller dog speeds up to 6 m/s. What is the kinetic energy of the dog now? How is kinetic energy related to speed? Kinetic energy (J) 100 50 0 0 10 40 50 20 30 Mass (kg)