What is the kinetic energy of a 0.115-kg baseball thrown at 10.0 m/s (22 mph)?Select one:a.5.75 Jb.0.575 Jc.0.174 Jd.1.15 Je.11.5 J
Question
What is the kinetic energy of a 0.115-kg baseball thrown at 10.0 m/s (22 mph)?Select one:a.5.75 Jb.0.575 Jc.0.174 Jd.1.15 Je.11.5 J
Solution
The kinetic energy (KE) of an object can be calculated using the formula:
KE = 1/2 * m * v^2
where: m is the mass of the object, and v is the velocity of the object.
In this case, the mass (m) of the baseball is 0.115 kg and the velocity (v) is 10.0 m/s.
Substituting these values into the formula gives:
KE = 1/2 * 0.115 kg * (10.0 m/s)^2 KE = 0.0575 kg * 100 m^2/s^2 KE = 5.75 J
So, the kinetic energy of the baseball is 5.75 Joules. Therefore, the correct answer is a. 5.75 J.
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