Two identical objects. A and B, move along straight, parallel, horizontal tracks. The graph on the right represents the velocity as a function of time for the two objects.

(a) Indicate which of the two objects, if either, has a decreasing speed during the time interval shown. If neither object has a decreasing speed, indicate this specifically. Briefly explain your answer.
(b) Indicate at approximately which time or times, if any, the objects are moving at the same speed. If objects A and B are never moving at the same speed during the interval shown, indicate this specifically. Briefly explain your answer.

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