Answer Happy

Sign Learning Activity A resultant horizontal wind force of 21.65 pounds is applied on the sign shown below. This force is located at the center of the upper portion of the sign at 8.165 feet above the ground; causing it to fall over. Determine the velocity of the sign just before it hits the ground. Show all your calculations including: 1. Fbd, center of mass of the sign, moment of inertia. 2. All forces include locations of normal forces. Friction forces using coefficient of static friction of 0.57. 3. Kinetic energy of the sign before and after it falls. Hints: Find the point of rotation of the sign and its relationship to the center of mass.
top portion weight 31 pounds provided = by sign specification 10' x 2" diameter aluminum pole weight = 5 pounds 2' x 2' steel base plate with sleeve for post weight = 40 pounds As calculated in engineering report. 12"W 12"W 12"W 12"W 12"W 10¹-4" 52" H top portion Materials Used Nails Wood Glue Vinyl Sticker Metal Base Final Size Cuts 1.12"W x 52" H Total Pieces = 45 2.12" x 12" x 12" Triangle Piece Total Pieces = 30 15 Signs Made