(a) A long jumper leaves the ground at 45° above the horizontal and lands 8.0 m away. What is her…

(a) A long jumper leaves the ground at 45°
above the horizontal and lands 8.0 m away. What is her “takeoff” speed v0?
(b) Now she is out on a hike and comes to the left bank of a river. There is no
bridge and the right bank is 10.0m away horizontally and 2.5 m, vertically
below. If she long jumps from the edge of the left bank at 45° with the speed
calculated in (a), how long, or short, of the opposite bank will she land (Fig.
3-43)?