Question

The velocity of an object increases from -10 m/s to -15 m/s in 2.0 s. What is the average acceleration of the object?

A. -12.5 m/s^2

B. -2.5 m/s^2

C. +2.5 m/s^2

D. +12.5 m/s^2

:/

Answer 1

average acceleration = change in velocity / change in time

Answer 2

oh lol never mind

Answer 3

okay :)

so change in velocity is -5 m/s ? and change in time is 2 ? so -5/2 = -2.5 ? so answer B? @perl ?

Answer 4

oh, so +5 ?