A baseball weighs 5.19 . What is the kinetic energy in joules of this baseball when it is thrown by a major-league pitcher at 98.0 ?
Can you not at least look in your textbook? There just HAS to be a formula for kinetic energy:
K = 1/2 m v^2
You have m and v. What's the problem?
4.726 J
To calculate the kinetic energy of the baseball, we can use the formula:
Kinetic Energy = 0.5 * mass * velocity^2
Given:
Mass of the baseball (m) = 5.19 kg
Velocity of the baseball (v) = 98.0 m/s
Now, we can plug in these values into the formula:
Kinetic Energy = 0.5 * 5.19 kg * (98.0 m/s)^2
Calculating this using a calculator, we get:
Kinetic Energy = 0.5 * 5.19 kg * (98.0 m/s)^2 = 24975.66 Joules
Therefore, the kinetic energy of the baseball when it is thrown at 98.0 m/s by a major-league pitcher is approximately 24975.66 Joules.