You’re a consulting engineer specializing in athletic facilities, and you’ve been asked to help design
the Olympic ski jump pictured in Fig. 3.25. Skiers will leave the jump at 28 m/s and 9.5ª below the
horizontal, and land 55 m horizontally from the end of the jump. Your job is to specify the slope of
the ground so skiers’ trajectories make an angle of only 3.0º with the ground on landing, ensuring
their safety. What slope do you specify?

Question

You’re a consulting engineer specializing in athletic facilities, and you’ve been asked to help design
the Olympic ski jump pictured in Fig. 3.25. Skiers will leave the jump at 28 m/s and 9.5ª below the
horizontal, and land 55 m horizontally from the end of the jump. Your job is to specify the slope of
the ground so skiers’ trajectories make an angle of only 3.0º with the ground on landing, ensuring
their safety. What slope do you specify?