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# Determine the kinetic energy of a baseball whose mass is 100 grams and has a speed of 30 m/s.

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## Answer to a math question Determine the kinetic energy of a baseball whose mass is 100 grams and has a speed of 30 m/s.

Andrea
4.5
To determine the kinetic energy of the baseball, we can use the formula:

KE = \frac{1}{2} mv^2

where KE represents the kinetic energy, m represents the mass of the baseball, and v represents the speed of the baseball.

Given that the mass of the baseball is 100 grams $which is equal to 0.1 kg$ and the speed is 30 m/s, we can substitute these values into the formula:

KE = \frac{1}{2} $0.1 \, \text{kg}$ $30 \, \text{m/s}$^2

Simplifying the expression within the parentheses first:

KE = \frac{1}{2} $0.1 \, \text{kg}$ $900 \, \text{m}^2/\text{s}^2$

Now, we can multiply the numbers outside the parentheses:

KE = \frac{1}{2} $0.1$$900$ \, \text{kg} \, \text{m}^2/\text{s}^2

Simplifying further:

KE = 45 \, \text{kg} \, \text{m}^2/\text{s}^2
KE=45J

Answer: The kinetic energy of the baseball is 45 J

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