Homework subplot/ derivative help

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Bob Donte
Bob Donte 2015-6-5
评论： Walter Roberson 2015-6-5
Im having trouble with my current matlab homework, if anyone can sole this problem for me it will be greatly appreciated.
"The position X as a function of time of a particle that moves along a straight line is given by:x(t)=(-3+4t)e^-0.4t ft. The velocity v(t) of the particle is determined by the derivative of x(t) with respect to t, and the acceleration a(t) is determined by the derivative of v(t) with respect to t. Derive the expressions for the velocity and acceleration of the particle, and make plots of the position, velocity, and acceleration as functions of time for 0<t<20 s. Use the subplot command to make the three plots on the same page with the plot of the position on the top, the velocity in the middle, and the acceleration at the bottom. Label the axes appropriately with the correct units."

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