3. The track for this racing event was designed so that riders jump off the slope at 30°, from a height of 1 m. During a race it was observed that the rider shown in Fig. 12-23a remained in mid air for 1.5 s. Determine the speed at which he was traveling off the ramp, the horizontal distance he travels before striking the ground, a Neglect the size of the bike and rider. y (a) OR.C. Hibbeler) 30° C x At h 1 m B R- (b) Fig. 12-23