The 1994 Winter Olympics included the aerials competition inskiing. In this even

Question

The 1994 Winter Olympics included the aerials competition inskiing. In this event skiers speed down a ramp that slopes sharplyupward at the end. The sharp upward slope launches them into theair, where they perform acrobatic maneuvers. In the women'scompetition, the end of a typical launch ramp is directed67°above the horizontal. With this launch angle, a skier attains aheight of 11 m above the end of theramp. What is the skier's launch speed?
m/s
Thanks for your help! :)
The 1994 Winter Olympics included the aerials competition inskiing. In this event skiers speed down a ramp that slopes sharplyupward at the end. The sharp upward slope launches them into theair, where they perform acrobatic maneuvers. In the women'scompetition, the end of a typical launch ramp is directed67°above the horizontal. With this launch angle, a skier attains aheight of 11 m above the end of theramp. What is the skier's launch speed?
m/s
Thanks for your help! :)

Explanation / Answer

let the speed be v vy = vsin(67) the max height measure from the lauch point H = 11m since H = 11m = vy2 / 2g => vy =vsin(67) = (2gH) v = (2gH) / sin(67) = (2*9.8m/s2*11m)/ sin(67)=15.95m/s answer: 15.95m/s

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