A 700 kg race car makes one lap around a track. It has a velocity of 20 m/s with a centripetal force of 5,600 n. What is the radius of the track?.

The ancestors of horses possessed feet with five digits. over time, with the development of grasslands, the digits fused and formed hooves. what evolutionary advantage did this transformation serve? a. it allowed them to climb rocky surfaces with ease. b. it allowed them to graze better. c. it enabled them to run faster from predators. d. it let them see clearly through the grasslands. e. it made them taller.