A copy-cat daredevil tries to reenact F.vel Knievel's 1974 attempt to jump the Snake River Canyon in a rocket-powered motorcycle. The canyon is L. = 400. m wide, with the opposite rims at the same height. The height of the launch ramp at one rim of the canyon is h = 8.00 m above the rim, and the angle of the end of the ramp is 45.0° with the horizontal.

a) What is the minimum launch speed required for the daredevil to make it across the canyon? Neglect the air resistance and wind.
b) Famous after his successful first jump, but still recovering from the injuries sustained in the crash caused by a strong bounce upon landing, the daredevil decides to jump again but to add a landing ramp with a slope that will match the angle of his velocity at landing. If the height of the landing ramp at the opposite rim is 3.00 m, what is the new required launch speed?

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8.00 m 100. m