6. A journalist is testing the acceleration of a new car. He measures the final velocity of the car to be 15 m/s. If the car was initially stopped 10 s before the journalist made her measurement, what is the car's acceleration?

1.5 m/s^2

Explanation:

Don't rlly understand the question, but I'll just take it as the initial velocity is 0

a = 15 - 0

- - - - - -

10

= 1.5 m/s^2

i am pretty sure it is c because when people are closer together, they cannot move as freely. picture being in a mostly full elevator, for instance. the people are right next to you, and you can barely move.