A car is travelling at a velocity of 20m/s. After 30sec it covers a distance of 1200 m. Calculate the acceleration of the car and the final velocity of the car.

Acceleration:

Final velocity:

Explanation:

To calculate the acceleration, you start from the formula:

Thus:

Now that you have the accelration, you can use the this formula to calculate the final speed:

Thus:

yeet youwelcome broo

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.