Two cars start at the same point, but travel in opposite directions on a circular path of radius R, each at speed v. While each car travels a distance less than , one quarter circle, the center of mass of the two cars A)remains at the initial point. B)travels along a diameter of the circle at speed v' v. E)remains at the center of the circle.

Question

Two cars start at the same point, but travel in opposite directions on a circular path of radius R, each at speed v. While each car travels a distance less than  , one quarter circle, the center of mass of the two cars
A)remains at the initial point. 
B)travels along a diameter of the circle at speed v' < v. 
C)travels along a diameter of the circle at speed v' = v. 
D)travels along a diameter of the circle at speed v' > v. 
E)remains at the center of the circle.

Quizplus · Accepted Answer

The Answer of Two cars start at the same point, but travel in opposite directions on a circular path of radius R, each at speed v. While each car travels a distance less than  , one quarter circle, the center of mass of the two cars
A)remains at the initial point. 
B)travels along a diameter of the circle at speed v' < v. 
C)travels along a diameter of the circle at speed v' = v. 
D)travels along a diameter of the circle at speed v' > v. 
E)remains at the center of the circle.

Two Cars Start at the Same Point, but Travel in Opposite