Suppose a daredevil attempted to jump a canyon, using a special rocket built for the stunt. Suppose it was launched off a ramp shown in the picture. The ramp was 325 feet in length and rose vertically 225 feet.

Question

(a) Calculate the measure of the angle of elevation that the ramp makes with the ground.

b) The horizontal crossbeam is located halfway to the top of the ramp. Calculate the length of this crossbeam.

Answer 1

(a) tanθ = 225/325
(b) Assuming it was attached to vertical support from the end of the ramp, it would be
1/2 * 325 cosθ
or, 1/2 √(325^2-225^2)

Answer 2

the length of the ramp is the hypotenuse

(a) sin(Θ) = 225/325

Answer 3

scott got it right. My bad.