Peter Pan travels 25 km north then 32 km west (following the second star on the right) over the course of 240 minutes. Watch those units!
a. What was their average speed in km/hr?
b. What was their average velocity in km/hr?

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.