A 25.0kg cannonball is ascending after being launched. Neglect drag, How many forces are acting on the cannonball?
1
What is the magnitude of the net force on the cannonball?
unit
What is the magnitude of the cannonball's acceleration?
unit
Describe the cannonball's speed at this time:

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.

c. newton's third law of motion