Question

what is the kinetic energy of a baseball travelling at 25 m/s with a mass of 0.56 kg? kinetic energy is the energy that objects possess due to their motion. m = mass (kg) v = velocity (m/s) ke = kinetic energy (j) ke = 1/2 mv² 8 j 14 j 175 j 350 j

Explanation:

Step1: Identify the formula

The formula for kinetic energy is $KE=\frac{1}{2}mv^{2}$.

Step2: Substitute values

Given $m = 0.56$ kg and $v=25$ m/s. Substitute into the formula: $KE=\frac{1}{2}\times0.56\times(25)^{2}$.

Step3: Calculate $(25)^{2}$

$(25)^{2}=625$.

Step4: Calculate $\frac{1}{2}\times0.56\times625$

$\frac{1}{2}\times0.56 = 0.28$, then $0.28\times625 = 175$ J.

Answer:

175 J