51 A skilled skier knows to jump upward before reaching a downward slope. Consider a jump in which the launch speed is
Vo = 10 m/s, the launch angle is tata =11.3°, the initial course is
approximately flat, and the steeper track has a slope of 9.0°.
Figure 4-42a shows a prejump that allows the skier to land on the top
portion of the steeper track. Figure 4-42b shows a jump at the edge
of the steeper track. In Fig. 4-42a, the skier lands at approximately
the launch level. (a) In the landing, what is the angle between the
skier's path and the slope? In Fig. 4-42b, (b) how far below the
launch level does the skier land and (c) what is angle
? (The greater fall
and greater can result in loss of control in the landing.)
/ 90
(6)