Question

Starting at a speed of 55 km/h, my minivan accelerates to 30 km/h in 6 seconds. What is its acceleration?

Answer 1

acceleration is the change in velocity with time

Answer 2

so the change in velocity would be 35 km/h?

Answer 3

now - start =

Answer 4

30-55= -85 ?

Answer 5

he is actually braking in real life

Answer 6

im still kind of confused

Answer 7

look at the original do you have the numbers switched?
how can you accelerate with a lower speed?

Answer 8

so would the final answer be -14.167 km/h/secs ?

Answer 9

acceleration is the change per unit time
change is km/h means km/60*60 sec because 60 sec = 1 min and 60 min = 1 hr and the time was 6 sec

Answer 10

unit of measure for acceleration is m/sec^2