Each soccer ball has a mass of 3kg. A soccer player kicks one ball at a velocity of 14m/s, and it strikes a stationary ball. What is the final speed of the first ball if: a. The first ball stops moving after it strikes the second ball.
b. The first ball continues moving after the collision at 1.8m/s in the same direction.

divide the right side by the left side

0.024÷1.2=0.02 for example

f=ma a/f/m a= 480/60 a = 8m/s/s that is quick wow

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.