The kinetic energy (KE) of an object can be calculated using the formula:
KE = (1/2) * mass * velocity^2
Given: Mass of the baseball (m) = 145 g = 0.145 kg Velocity of the baseball (v) = 45 m/s
Substituting these values into the formula, we can calculate the kinetic energy:
KE = (1/2) * 0.145 kg * (45 m/s)^2 = 0.5 * 0.145 kg * 2025 m^2/s^2 = 183.5625 J
Therefore, the kinetic energy of the baseball is approximately 183.5625 Joules (J).