2-114.  WebLink 2-5 shows the motion of a cart in each of the two situations shown in Figure 2-13. When the cart is in the situation shown in Figure 2-13b,

a.   its velocity at t = 2 s is _________ . positive and increasing; positive and decreasing; negative and increasing (becoming less negative); negative and decreasing (becoming more negative). b.   its velocity at t = 6 s is _________ . positive and increasing; positive and decreasing; negative and increasing (becoming less negative); negative and decreasing (becoming more negative). c.   its acceleration at t = 2 s is _________ and its acceleration at 6 s is _________ . positive … positive; positive … negative; negative … positive; negative … negative.

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