Question

Part A You're a consulting engineer specializing in athletic facilities, and you've been asked to help design the Olympic ski jump pictured in figure below. Skiers will leave the jump at 27 m/s and 9.5° 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 3.0° with the ground on landing, ensuring their safety (Figure 1) What slope do you specify? Express your answer using two significant figures. I AM A O O ? below 3 axis Submit Request Answer Figure < 1 of 1 > Provide Feedback

Answer 1

so bort A guen dato Tritial velocity, U=27m/sec 8 =9.5. Hauzentar component of velocity aun be, Ux- U Colo = 278 2099.5 4x = 26.65 m/sec) vertical component of velouty sure be, Mg-ugune = 278 sings Tuy = 9756 /sec by equation of motion the know that Vrutat

and also Range Ŕ is quen by Rdext R = 26.62xt 55 26-62t t. 55 26.62 It 2066 sec) تراکم v arat (0-9). Vargt Vy-Mytgt Vy=9.456 79-8142.066

Vy = 24.72 m/sec) tonovy ve 24.72 tano Чу tond: 24-72 26-62 tone=0.9286 T0 =42-889/ Thes to projectory makes an angle of 30 muth ground, 8-42-88-30 10:39.880 elevation. from Horizon.