Point A is the highest point along the roller coaster ride section shown. The inscribed ci...

Point A is the highest point along the roller coaster ride section shown. The inscribed circle at A has radius ρ = 25 m and center at C. If point B is on a horizontal line going through C and if the roller coaster has a speed υ0 = 45 km/h at A, neglecting friction and air drag and treating the roller coaster as a particle, determine the speed of the roller coaster at B.

Figure P4.27