Physics
posted by Linda .
Figure 241
gives the acceleration a versus time t for a particle moving along an x axis. The aaxis scale is set by as = 13.0 m/s2. At t = 2.0 s, the particle's velocity is 10.0 m/s. What is its velocity at t = 6.0 s?

what does the aaxis is "set" by as=13m/s^3 actually mean?
Is acceleration constant?
If acceleation is constant, then
v(6)=v(2)+a*t where t is six 
Per the figure ( I was unable to post), the graph is a linear line, it doesn't mention that acceleration is constant.

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