Module #7 Packet Amath 141 - Module #7 Section 2: Applications of Radical Functions 7.2 Notes and Examples f ( x ) = Vx f ( x ) = Vx 2) 1) 10 x 3) If you walk in the normal way, your maximum speed (v) in meters per second, is limited by the length of your legs (r) according to the formula v = Vgr where the constant g is approximately 10 meters per second squared. a.) A typical adult has legs about 0.9 meters long. How fast can they walk? b. ) A typical four-year-old has legs 0.5 meters long. How fast can they walk? c.) Graph maximum walking speed as a function of leg length. d.) Race-walkers can walk as fast as 4.4 meters per second by rotating their hips so that the effective length of their legs is increased. What is that effective length? e. ) On the Moon the value of g is 1.6 meters per second squared. How fast can a typical adult walk on the Moon