At time t, the population P(t) of a certain city is increasing at a rate that is proportional to the number of residents in the city at that time. In January 2000, the population of the city was 10,000 and by 2005 it had risen to 20,000. (a) What will the population of the city be at the beginning of the year 2020? (b) In what year will the population reach one million?

L30 - 9 Rectilinear Motion ex. Suppose a particle moves in a straight line and has acceleration...