in Matlab:

The position as a function of time [x(t), y(t)] of a squirrel running of a field is given by:

2 rows and 2 columns of plots on a page (subplot command)

a. Plot the trajectory (position) of the squirrel for 0 ? t ? 30 sec.

b. Plot (2^nd plot) the length of the position vector, r(t), of the squirrel for the same time as above

c. Plot (3^rd) the angle of the position, ?(t) for the same time as above

d. Plot (4^th) the ?(t) and r(t) on a polar plot (hint: polar is the command to plot, find out the order by typing help polar on Command Window)

(t) -0.28t +6.5t 61