What tangential speed, v , must the bob have so that it moves in a horizontal circle with the string always making an angle θ from the vertical?.

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.

Improved travle between colonies and africa

Maybe because he failed the classes or is very accelerated.