Chapter 8, Problem 162P

A telemetry system is used to quantify kinematic values of a ski jumper immediately before the jumper leaves the ramp. According to the system  r=560 ft  ,   r˙=−105 ft/s  ,   r¨=−10 ft/s2  ,   θ=25°  ,   θ˙=0.07 rad/s  ,    θ¨=0.06 rad/s2 Determine the velocity of the skier immediately before leaving the jump. The velocity of the skier immediately before leaving the jump along with its direction is ? I have 112.08 ft/s but can't seem to get the direction correct. Determine the acceleration of the skier at this instant. At this instant, the acceleration of the skier along with its direction is ? acceleration is 22.8 ft/s^2 but need help with direction. Need help with velocity direction and acceleration direction please.

For the stop bracket shown, locate the x coordinate of the center of gravity. Consider a = = 16.50 mm. 34 mm 62 mm 51 mm 10 mm 100 mm 88 mm 55 mm 45 mm The x coordinate of the center of gravity is mm.

In the given figure, the bent rod ABEF is supported by bearings at C and D and by wire AH. The portion AB of the rod is 250 mm long, and the load W is 580 N. Assume that the bearing at D does not exert any axial thrust. H B A с 30° 250 mm D Z 50 mm 300 mm F 250 mm 50 mm W Draw the free-body diagram needed to determine the tension in wire AH and the reactions at C and D.