Question

@jim_thompson5910

We can start at 8 since I already did the others, kinda just vocab there

https://blackboard.leeschools.net/bbcswebdav/pid-91089-dt-content-rid-1250105_1/courses/0531-JohnsonJim-1/Unit%202%20-%20Sample%20Test.pdf

Answer 1

it's asking me to log in

Answer 2

so you'll have to attach it

Answer 3

Okay let me save the document

Answer 4

so you're on #8? the racehorse question right?

Answer 5

Yeah I converted my meters to km and set up and solved my equation but my answer wasn't up there

Answer 6

what answer did you get?

Answer 7

1.13 seconds

Answer 8

way too small

Answer 9

hours*

Answer 10

oh, then that's way too big (for hours)

Answer 11

you used

x = v*t

right?

Answer 12

x = displacement
v = velocity
t = time

assuming we're on a straight path

Answer 13

Yes

Answer 14

and you have 400 m = 0.4 km

Answer 15

Yes I got that part lol woo

Answer 16

so,

x = v*t

0.4 = 69*t

t = ??

Answer 17

t=0.0058 hours

Answer 18

convert that to minutes to get ???

Answer 19

0.348 mins?

Answer 20

then convert that to seconds

Answer 21

Righttttt that wasn't too hard :P

20.88 or 21

Answer 22

And I know 9 is A because the avg velocity is going from initial to final and you connect those 2 points and that's the graph of a

Answer 23

9A is correct

Answer 24

And 10 I did and got C

Answer 25

another way to state why 9A is correct is because velocity = displacement/(change in time)

Answer 26

I got 10C too

Answer 27

And 11 I just don't know how to do lol

Answer 28

Let's assume they both start out at the opposite ends of the 300m street