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0 votes
2.5k views
in Physics by (70.5k points)

The diagram below is a snapshot of three cars all moving counterclockwise during a one lap race on an elliptical track.

Which car at the moment of the snapshot MUST have a net force acting on it?

(A) car A  

(B) car B provided 

(C) car C

(D) all three cars have net forces acting on them

(E) cannot be determined with information 

1 Answer

+1 vote
by (70.7k points)
selected by
 
Best answer

Correct option (D) all three cars have net forces acting on them

As all the cars are changing direction, there must be a net force to change the direction of their velocity vectors

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