Physics · WORK, ENERGY AND POWER

A running athlete of mass \( 70\text{ kg} \) runs with a speed of \( 10\text{ m s}^{-1} \) having kinetic energy \( K_1 \). A stone of mass \( 1\text{ kg} \) dropped from a height of \( 10\text{ m} \) reaches the ground with kinetic energy \( K_2 \approx 10^2\text{ J} \). The ratio \( \frac{K_1}{K_2} \) is equal to:

1. A
   \( 0.035 \)
2. B
   \( 7.0 \)
3. C
   \( 35 \)
4. D
   \( 350 \)