A baseball has a mass of 145 g and is thrown with a velocity of 45 m s. What is the kinetic energy of the baseball?
The kinetic energy of an object is given by the equation KE = 1/2 * mv^2, where KE is the kinetic energy, m is the mass of the object, and v is the velocity of the object. In this case, the mass of the baseball is 145 g, or 0.145 kg, and the velocity of the baseball is 45 m s. Plugging these values into the equation, we get KE = 1/2 * 0.145 kg * (45 m s)^2 = 311.9 J.
Therefore, the kinetic energy of the baseball is 311.9 J.
Related Questions and Answers:
- What is the formula for kinetic energy? KE = 1/2 * mv^2
- What are the units of kinetic energy? Joules (J)
- What is the mass of the baseball in kilograms? 0.145 kg
- What is the velocity of the baseball in kilometers per hour? 162 km/h
- What is the momentum of the baseball? 6.525 kg m/s
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