If a ball is rolling in a straight line and you push it to the right, its velocity will to the right. a. displace b. frame c. accelerate d. reference

The correct answer is "accelerate".

Explanation:

Acceleration is the rate of change of velocity.

The mathematical expression for acceleration is as follows;

Here, a is the acceleration, v is the final velocity, u is the initial velocity and t is the time taken.

In the given problem, a ball is rolling in a straight line. If the force is applied to it to the right then its velocity increases. It will go towards right. The velocity will accelerate to the right in this case.

If the force is applied to ball to the left then its velocity decrease. In this case, the ball will decelerate.

Therefore, the correct option is (c).

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.

see earlier answer