Question

e) A diver off the high board imparts an initial rotation with his body fully extended before going into a tuck and executing three back somersaults before hitting the water. If his moment of Inertia before the fuck is 18.2 kg- and after the tuck during the somersaults is 3.8 kg.m2, what rotation rate must he impart to his body directly off the board and before the tuck if he takes 1.4s to execute the somersaults before hitting the water? Canswer in rad/s) 7) A geosynchronus Earth satellite is one that has an orbital perred of precisely I day. Such orbits are useful for Communication and weather observation because the Satellite remains above the same pont on Earth (provided it orbits in the equatorial plane in the same direction as Earth's rotation). Calculate the radius of the orbit (with the center of Earth as the origin) based on the data for Earth. Lanswer in km) 8. A man of mass 80kg runs up a flight of stairs 20 m high in 10s. How much power did the man use ? Cansuar in Watts) a) Tarzan grabs a vine hanging vertically from tall tree when he is running at 9.0 m/s. How high can he swing upward? Cansuer in mete

6,7,8,9

Answer 1