En el salto vertical, la energía cinética de Francisco se transforma en energía potencial gravitatoria sin la ayuda de una garrocha. ¿Con qué rapidez mínima debe dejar el suelo Francisco, para elevar su centro de masa 2,10 y cruzar la barra con una velocidad de 0,70 ? M

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Explanation:

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.