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k Google Chrome a Secure https://session masteringphysics.com/myct/itemView?assignmentProblemID 885281208koffset-next Chapter 2 homework Problem 2.20 ) 3of10 -1 We set the origin of a coordinate system so that the position of a train is ar 0 m at t 0s. (Figure 1) shows the train's velocity graph. dy M Request Answer erials Figure 1of1 > Part C Find the acceleration of the train at t 3.0s Express your answer to two significant figures and include the appropriate units v, (m/s) aValue Units t (s) 2 4 6 8 10

Explanation / Answer

a= dv/dt
at t=3 slope of v vs t graph is 1  

a= dv/dt = 1 m/s2

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