2025年5月美国A卷练习 · 第 5 题

The kinetic energy, in joules, of an object with mass \( 41 \) kilograms traveling at a speed of \( v \) meters per second is given by the function \( K \), where \( K\left(v\right)=\frac{1}{2}\left(41\right)\left(v^2\right) \). Which of the following is the best interpretation of \( K\left(0\right)=0 \)in this context?