
Baseline values of the system parameters are
m ¼0.25 slugs, v
0
¼500 ft=s, c ¼0.015 lb s=ft, a
0
¼458
Use the Simulink diagram as shown in Figure E7.6b or construct your own Simulink model
to answer the following questions.
FIGURE E7.6b
(a) The proje ctile is fired in the vertical direction. Find
(i) The analytical solution y(t), t 0 and plot it for the time period when y 0
(ii) The peak altitude H attained by the projectile
(iii) The time t
p
when the peak altitude is reached
(b) Find the maximum altitude H by optimization, that is, search for the time when y(t)isa
minimum. Compare the result with your answer in part (a).
(c) Find the horizontal distance ...