Solutions to Assignment #3

p.147/
10.
a. v(t) = s'(t) = 24 – 1.6t m/sec
a(t) = v'(t) = s''(t) = –1.6 m/sec/sec

b. 15 sec

c. 180 m

d. 4.39 sec and 25.6 sec

e. 30 seconds

18.
a.  

b. $55.56

c. The limit is zero!

28. rabbits/day and foxes/day

30. a

32. c