Question

Medal. :)

Lisa was trying to park her car. She moved her car forward at a constant velocity for 5 seconds, and then backward at a constant velocity for 10 seconds. She then moved her car forward again at a constant velocity for the next 5 seconds, and then she stopped. Which of the following graphs could represent the motion of Lisa’s car?

Answer 1

So essentialy she moved foward for 10 secodns and moved back for 10 seconds.

Answer 2

@ganeshie8

Answer 3

I guess.

Answer 4

I guess isn't good enough sorry. What's your confusion.

Answer 5

Let's say your at origin (0,0)

You take 5 steps in the x direction (5,0)

Then 10 steps backwards in the x direction (-5,0)
then 5 steps foward again in the x direction (0,0)

Answer 6

If she goes at a constant speed, then the displacement shouldn't be huge, right?

Answer 7

Look at what I just posted and see if it makes sense to you.

Answer 8

And if she eventually stops, It has to comedown, right? I guessed A but wasn't sure.

Answer 9

No not necessarily, you speed(how fast she as going) comes to a stop yes. But her position is still her position.

Answer 10

stopping your car won't bring you back to home

Answer 11

Oh, I hadn't thought of that >.<

Answer 12

That's weird her displacement should be zero since she practictally retraced her steps.

Answer 13

So it can't be A, meaning its B C or D.

Answer 14

It would make sense for it to be A I can see where you got that there since she moved ackwards the slope should be downward

Answer 15

Lol didn't see the last posted image there. D would do fine

Answer 16

Thanks. ^-^

Answer 17

The only other one was a downhill slope indicating that you moved backward

Answer 18

No problem sorry it took a bit longer than intended

Answer 19

Thats okay. :)