2. The baggage truck A shown in the photo has a weight of 560kg and tows a 400kg cart B and a 295kg cart C. For a short time, the driving frictional force developed at the wheels of the truck is F.= (40t-) Newtons, where t is in seconds. If the truck starts with a velocity of 1.50m/seconds, determine its speed (m/s) in 5.50 seconds. Also, what is the horizontal force (in Newtons) acting on the coupling between the truck and cart B at this instant? (

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