A car travels 30 min 5 seconds. After accelerating for 3 seconds,
it travels 20 min 2 seconds. Calculate the car's acceleration,
1) Find Vi
2) Find Vf.
3) Calculate a.

The integral of acceleration = velocity

Step 1.  write a linear equation for the graph ...  a =  some function of t  --

  (hint -- from alg 1 , use y = mx + b)  

Step 2.  --- integrate to get a velocity equation.  use the initial condition to find C  ...  (At t = 0, the velocity of the car is 0)

 ---  the integral of velocity  =  displacement (or position)

step 3.  integrate the velocity equation from step 2 to get a position vs time equation

--- use the initial condition to find C  (At t = 0, its position is 10)

step 4.  answer the question

Explanation:

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )