A cart on an air track is moving at 0.5 m/s when the air is suddenly turned off. The cart comes to rest after traveling 1 m. The experiment is repeated, but now the cart is moving at 1 m/s when the air is turned off. How far does the cart travel before coming to rest?

BLUE: Same, 1 m.

YELLOW: 2 m.

GREEN: 4 m.

PURPLE: 1/2 m.

PINK: (not enough information)