In a stunt filmed for a movie, a van rolls down an incline and off a vertical cliff, falling into a valley below. The van starts from rest and rolls down the incline, which makes an angle of 21.0\deg below the horizontal, with a constant acceleration of 3.37 m/s2. After rolling down the incline a distance of 45.0 m, it reaches the edge of the cliff, which is 25.0 m above ground level. (a) How much time (in s) does it take the van to fall from the edge of the cliff to the landing point? (b) At the point where the van crashes into the ground, how far is it horizontally from the edge of the cliff (in m)?