Physics

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A Hollywood daredevil plans to jump the canyon shown in the figure on a motorcycle. There is a 15. m drop and the horizontal distance originally planned was 60. m but it turns out the canyon is really 65.7 m across. If he desires a 3.2-second flight time, (a) what is the correct angle for his launch ramp (deg)? (b) What is his correct launch speed? (c) What is the correct angle for his landing ramp (give a positive angle below the horizontal)? (d) What is his predicted landing velocity. (Neglect air resistance.)

For (a) I got 28.2 degrees already

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