Question: The baseball's kinetic energy is 1/2 × 0.15kg ×(24.6ms-1)2 = 45.4J. The kinetic energy of the bowling ball is 1513J. That of the automobile is 0.454MJ (where "M" is the usual abbreviation for the prefix "mega," which stands for 106). Verify that these are correct numbers. Notice that since each mass has the same speed, their kinetic energies vary only by the ratios of their masses, i.e.,
