Question
What is the kinetic energy of a 148 gram baseball moving at a velocity of 42.0 meters per second?
What is the kinetic energy of a 148 gram baseball moving at a velocity of 42.0 meters per second?
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To calculate the kinetic energy of an object, you can use the equation:
Kinetic Energy = (1/2) * mass * velocity^2
Using this equation, we can substitute the given values:
Mass = 148 grams = 0.148 kg (since 1 kg = 1000 grams)
Velocity = 42.0 m/s
Kinetic Energy = (1/2) * 0.148 kg * (42.0 m/s)^2
Calculating the expression:
Kinetic Energy = 0.5 * 0.148 kg * (1764 m^2/s^2)
Kinetic Energy = 0.1308 kg * m^2/s^2
Therefore, the kinetic energy of a 148 gram baseball moving at a velocity of 42.0 meters per second is 0.1308 kg * m^2/s^2.
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