An airplane is flying north at 500 km/h. It makes a gradual 180 turn at constant speed, changing its direction of travel from north through east to south. The process takes 40 s. The average acceleration of the plane for this turn in km/h.s is:
A) 12.5 km/h.s, north
B) 12.5 km/h.s, east
C) 12.5 km/h.s, south
D) 25 km/h.s, north
E) 25 km/h.s, south

Question

An airplane is flying north at 500 km/h. It makes a gradual 180  turn at constant speed, changing its direction of travel from north through east to south. The process takes 40 s. The average acceleration of the plane for this turn in km/h.s is:
A) 12.5 km/h.s, north 
B) 12.5 km/h.s, east 
C) 12.5 km/h.s, south 
D) 25 km/h.s, north 
E) 25 km/h.s, south

Quizplus · Accepted Answer

The Answer of An airplane is flying north at 500 km/h. It makes a gradual 180  turn at constant speed, changing its direction of travel from north through east to south. The process takes 40 s. The average acceleration of the plane for this turn in km/h.s is:
A) 12.5 km/h.s, north 
B) 12.5 km/h.s, east 
C) 12.5 km/h.s, south 
D) 25 km/h.s, north 
E) 25 km/h.s, south

An Airplane Is Flying North at 500 Km/h