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In which of the following frames of reference is the baseball observed to have the greatest velocity?
Shown is a person stationary in their frame of reference watching a moving cart. On the moving cart is a second person who remains stationary on the cart in their frame of reference. The cart is moving with velocity=v. The person on the cart throws a baseball with velocity=0.5v in the frame of reference of the cart. In which of the following frames of reference is the baseball observed to have the greatest velocity?
A. The frame of reference of the cart.
B. The frame of reference of the person watching the cart.
C. The velocity of the baseball is the same in both frames of reference and is positive.
D. The velocity of the baseball is the same in both frames of reference and is zero.
