question 4 of 25\na 50 kg aardvark runs with a speed of 6 m/s. what is the kinetic energy of the…
question 4 of 25\na 50 kg aardvark runs with a speed of 6 m/s. what is the kinetic energy of the aardvark?\na. 600 j\nb. 300 j\nc. 150 j\nd. 900 j
Answer
Explanation:
Step1: Recall kinetic - energy formula
The formula for kinetic energy is $K.E.=\frac{1}{2}mv^{2}$, where $m$ is the mass and $v$ is the velocity.
Step2: Substitute given values
Given $m = 50\ kg$ and $v=6\ m/s$. Substitute into the formula: $K.E.=\frac{1}{2}\times50\times6^{2}$.
Step3: Calculate the result
First, calculate $6^{2}=36$. Then, $\frac{1}{2}\times50\times36 = 25\times36=900\ J$.
Answer:
D. 900 J