The figure below shows a $15$ kg object's position versus time. Find the velocity. Find the momentum. Write an equation for $\backslash ($ x $\backslash ).$ Assuming the trend continues, find $\backslash ($ x $\backslash )$ at $\backslash ($ t$=10\backslash$mathrm$\{$~s$\}\backslash ).$ Write an equation for $\backslash ($ D $\backslash ).$ Assuming the trend continues, find $\backslash ($ D $\backslash )$ at $\backslash (\backslash$mathrm$\{$t$\}=15\backslash$mathrm$\{$~s$\}\backslash ).$ Draw the displacement, velocity and momentum graphs versus time.