How would you calculate the kinetic energy of a 0.148kg baseball travelling 90 mph?

To calculate the kinetic energy of the Baseball, you first convert the mass from kg to grams (0.148kg = 148g). Then, convert the velocity from mph to m/s (90mph ≈ 40.23 m/s). Finally, use the equation KE = 0.5 * m * v^2, where KE is the kinetic energy, m is the mass in grams, and v is the velocity in m/s, to find the kinetic energy of the baseball.