Four solid balls, each with a different mass, are moving at the same speed. which ball would require the most force to stop its motion? a ball with a mass of 5 kg b ball with a mass of 10 kg c ball with a mass of 15 kg d ball with a mass of 20 kg

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.