During Sunday's superbowl, the middle linebacker for the Seattle Sea Hawks made the following movements after the ball was snapped on third down. First, he back-pedaled in the southern direction for 2.6 meters. He then shuffled to his left (west) for a distance of 2.2 meters. Finally, he made a half-turn and ran downfield a distance of 4.8 meters in a direction of 240° counter-clockwise from east (30° W of S) before finally knocking the wind out of New England Patriots' wide receiver. Determine the magnitude and direction of his overall displacement.

A two-tier system to repair bridges is supported by two steel cables for each platform. Lengths of the cables are la = 50 in. and lp = 190 in. Assume that two 190 lb workers are going to be standing on the system to repair a bridge, one on each platform. The following design requirement must be met: the stretch of each cable must be less than 0.02 in. at the worst-case loading condition for each cable. 140 in. 250 lb 190 in. 400 lb Determine the minimum diameter required for each cable. (Express your answers using two decimal places.) Cable at A: in. Cable at B: in. Cable at C: in. Cable at D: in.

What is y-axis reaction at Support A (Reaction Ay) in kN? E F G 1.5 m H 15 kN - 20 kN 2 m A B D 1.5 m 45 deg 1.5 m 1.5 m 14.14 kN IMPORTANT INSTRUCTIONS: Put your answer in the text box up to two decimal places. Only numerical values are accepted. Use conventional signs (+/- ve) for support reactions (for y-axis support reaction, upward direction reaction is +ve and downward direction reaction is -ve) 6.67

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