A10.0-kg object is initially moving with a velocity of 20.0 m/s to the north and is acted on by a constant net force. after the object moves 30.0 m to the north, its velocity is 12.0 m/s north. what is the constant net force acting on the object?

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.