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.

Answer: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