Which chords are congruent? QP and SR QR and PR and RS PR and PS.

Answer the osha construction standard requires flexible cords to be rated for hard or extra hard usage;

With any turning vehicle, the rear wheels follow a shorter path than the front wheels. the longer the vehicle is, the greater the difference will be. truck drivers initially swing out before making a turn. what isn't shown in this illustration is as car straightens out, the front wheels must travel a greater distance and the tail end drags on the shortest path.